Tuesday, March 30, 2010
Tundra Frame and Suspension Design
• Features and construction elements of Tundra chassis
• Benefits of Toyota's sophisticated engineering
A pickup truck's frame and suspension designs are key indicators of a vehicle's strength and poise. Chassis dynamics are often more complicated for pickups because of the extraordinary demands of hauling heavy loads and possible off-road use while still meeting Toyota's rigorous safety standards set for the entire lineup. The trend toward larger cabs also means the truck must provide a comfortable ride for the passengers.
The ladder frame is the truck's backbone, and although simple in appearance, its function is too complex to be narrowed down to a single approach. The competition brags that the frames on their ½-pickups are all fully boxed, which provides more "stiffness." But stiffness does not equate to strength. Frame strength is a combination of factors, including crossmember design and manufacturing choices. Toyota considered many factors when engineering the TripleTech™ frame.
TripleTech™ Engineering
A single method of frame construction isn't necessarily the best solution when designing a truck because some priorities may be compromised. Toyota's approach capitalizes on the benefits of three proven construction methods to deliver a frame that offers load-carrying capability, crash performance and ride quality. Here's how:
• The front section is fully boxed to support the engine weight. A robust front end also offers impact protection and provides solid mounting points for the steering and suspension components. This, in turn, improves handling response and steering precision.
• The middle section under the cab is a rolled-lip C-channel reinforced with heavy gauge steel. This design is lighter than fully boxed but still offers impact protection.
• The rear section under the bed is open C-channel—the same design used on most heavy-duty pickups for the entire frame. The open design offers a small measure of compliance under heavy load to help absorb road impacts before reaching the passenger cab.
Tundra suspension design
Toyota relies on refined proven and cost-efficient designs for the front and rear suspensions.
• Front is independent, double-wishbone with coil-over shocks. This arrangement provides consistent linear spring action when compared to some competitive models that mount the coil spring and shock absorber separately to the lower control arm.
• Rear is a traditional leaf-spring/live-axle arrangement. Leaf springs locate the axle and help control body sway. Trucks with a coil-spring rear suspension require an anti-sway bar. Toyota engineers also mounted the leaf springs in a "trapezoidal" pattern, meaning the front mounting points are wider than the rear shackles. This "towed out" design is very effective at reducing lateral axle movement and helps improve tracking when towing.
• Rear suspension features staggered shock absorbers to help reduce wheel hop under hard acceleration
If you liked this article you may enjoy this one too! http://jimmcnatttoyota.blogspot.com/2008/12/tundra-tripletech-frame-explained.html
Wednesday, February 3, 2010
Latest News Toyota Recall - letter to dealers
Subject: Safety Recall (Special Service Campaign) – A0A
Accelerator Pedal Modification Campaign
Vehicles Equipped with Accelerator Pedals Manufactured by CTS Corporation
On January 21, 2010, Toyota filed a Defect Information Report (DIR) with the National Highway Traffic Safety Administration (NHTSA) informing the agency of our intent to conduct a voluntary Safety Recall on vehicles equipped with certain accelerator pedal assemblies manufactured by the CTS Corporation (CTS accelerator pedals). This action is separate from the on-going recall (SSC 90L) of approximately 4.2 million Toyota and Lexus vehicles to reduce the risk of pedal entrapment by incorrect or out of place accessory floor mats.
Background
There is a possibility that certain accelerator pedal mechanisms may mechanically stick in a partially depressed position or return slowly to the idle position. Over time, the internal mechanisms in the accelerator pedal may become worn. As a result of this wear combined with certain operating and environmental conditions, friction in the mechanism may increase and intermittently result in the accelerator pedal being hard to depress and/or slow
to return or, in the worst case, stick in a partially open position, increasing the risk of a crash.
Toyota dealers are requested to install precision-cut steel reinforcement bar (“reinforcement bar”) that will increase the clearance in between the internal mechanisms in the pedal assembly. This increased clearance will reduce the friction caused by wear and environmental conditions and allow the pedal to operate smoothly for the life of the vehicle. The safety recall remedy will be performed at no charge to the vehicle owner.
(Affected Pedals)
Note:
• The name of the manufacturer is printed (Denso) or embossed (CTS) on the upper sensor housing on the brake pedal side.
• This safety campaign addresses the potential for a CTS accelerator pedal to mechanically stick in a partially depressed position or return slowly to the idle position.
• This condition is separate from the (DIR) filed in early October, 2009, in reference to the potential for an incorrect or improperly installed floor mat to interfere with the accelerator pedal.
The following vital information is provided to inform you and your staff of the owner notification phase of the campaign and your degree of involvement.
SSC A0A - D - Page 2
1. Owner Notification Mailing Date
The owner notification will begin in late February, 2010.
Please note that only owners of the affected vehicles will be notified. If you are contacted by an owner who has not yet received a notification, please verify eligibility by confirming through Dealer Daily/TIS prior to performing repairs. Dealers should perform the repair as outlined in the Technical Instructions found on TIS.
2. Vehicles in Dealer Stock
As required by Federal law, dealers are not to deliver any new vehicles in their inventory, which are involved in this safety recall. Dealers must perform the safety recall on all new vehicles in stock prior to sale or lease. Vehicle safety recall completion can be verified through TIS.
In order to assure established customers receive priority for the safety recall, we request that this campaign remedy be performed on in-stock vehicles just prior to vehicle delivery where possible.
A VIN list containing vehicles in dealer stock will be provided shortly.
3. Dealer Summary Reports
The following SSC A0A Summary Reports will be provided shortly:
• The suggested initial parts order quantities
• A VIN list containing vehicles in dealer stock
• Dealer Reports will no longer contain a PMA VIN list. However, they will contain the number of involved vehicles registered in each dealership’s primary marketing area and initial suggested parts order quantities, where applicable.
4. Number of Vehicles Involved
There are approximately 2.23 million vehicles equipped with a CTS pedal in the U.S.
5. Parts Ordering
The necessary parts can be ordered through your dealership’s facing PDC. Please refer to the table below and the Technical Instructions (located on TIS) for part number information.
To support the repair of customer vehicles the North American Parts Operation (NAPO) will initially allocate reinforcement bars to all Toyota dealerships from their facing parts distribution centers (PDC) starting February 3, 2010. All part numbers will be on manual allocation until further notice.
The initial quantities were determined based on the following:
• Size estimation required for the repair – Low/Medium/ High.
• Dealership’s estimated UIO by affected model.
Each dealership will be sent a minimum of one 10 piece bag for each of the reinforcement bar part numbers.
Any questions, request or concerns regarding the parameters established above should be
directed to your regional representative.
Accelerator Pedal Reinforcement Bar Model Part Number Part Name and Size Repair Volume
Estimate By Size
78112-07010* Accelerator Pedal Reinforcement Bar
Size: 1.4 mm Low
78112-07020* Accelerator Pedal Reinforcement Bar
Size: 1.6 mm Low
78112-07030* Accelerator Pedal Reinforcement Bar
Size: 1.8 mm High
78112-07040* Accelerator Pedal Reinforcement Bar
Size: 2.0 mm High
78112-07050* Accelerator Pedal Reinforcement Bar
Size: 2.3 mm High
78112-07060* Accelerator Pedal Reinforcement Bar
Size: 2.6 mm Medium
All
Applicable
Models
78112-07070* Accelerator Pedal Reinforcement Bar
Size: 2.9 mm Medium
* One unit order = 10 piece bag.
NOTE: To determine the correct size of accelerator pedal reinforcement bar needed, refer to the Technical Instructions located on TIS.
To help ensure correct parts distribution, all part numbers listed above will be on manual allocation control (MAC) until further notice.
NAPO will place and release orders for the initial quantities to be allocated to each dealer over the first two weeks of the campaign (subject to change), and will cancel dealer initiated orders during this period.
If there are special circumstances, dealership associates should go through their normal channels for resolution (e.g. PDC, Dealer Parts Call Center for TMS Region Dealers, DSPMs).
The associate should have the following information ready to expedite research of the order status:
1. Dealer Information (Dealer Code, Contact Name, Telephone Number)
2. Order Reference Number
3. Customer Name and Vehicle 17-digit VIN (if applicable)
SSC A0A - D – Page 7
(Parts Ordering Continued. . . )
IMPORTANT PARTS ORDERING REMINDER
Effective March 1, 2009, Safety Recall, Service Campaign (SSC/LSC) and Customer Support Program (CSP)
parts do not earn Parts Return Credit Accrual and are not returnable under the Monthly Return Program.
It is recommended that you order these parts based on appointments or immediate customer needs using a
"Sell One-Buy One" ordering pattern. Please refer to PANT Bulletin 09-12 for additional details.
In the event the accelerator link arm support cover (thin metal cover on the back of the accelerator pedal) is damaged during the repair, please utilize the part number listed below.
7. Repair Procedures Refer to TIS for the appropriate Technical Instructions. Conduct all applicable, open Special Service Campaigns on the vehicle during the time of appointment.
8. Warranty Processor Instructions
Please note the following for this campaign:
The operation codes to be used for this campaign are:
SSC Op. Code Description Flat Rate Hour
A0A 0501B1 Install the Accelerator Pedal Reinforcement Bar 0.7 hr / vehicles
A0A 0501B2 Install the Accelerator Pedal Reinforcement Bar in
conjunction with SSC 90L 0.4 hr / vehicles
• The above flat rate time includes 0.1 hour for administrative cost per unit.
• Rental Car: Use "RT" sublet type for Op. Code 0501B1 and 0501B2. Customer rental car through the Toyota-Rent-A-Car (TRAC) Program is available for a maximum of one day at a maximum rate of $35 per day. Special accommodations, not outlined above require DSPM authorization.
• Claims made for Op Code 0501B1 or 0501B2 must be filled in with accurate part numbers
(according to reinforcement bar thickness).
Model Part Number Part Name Qty/Unit
All Applicable Models 78211-07010 Accelerator Link Arm Support Cover 1
SSC A0A - D – Page 8
9. Customer Handling
Please consider this campaign a great opportunity to focus on assuring customers that their safety remains Toyota’s highest priority. Customers who receive the owner letter may contact your dealership with questions regarding the letter and/or campaign remedy. Please welcome them to your dealership and answer any questions that they may have. A Q&A is provided to assure a consistent message is communicated.
• Customers with additional questions or concerns are asked to please contact the Toyota Customer Experience Center (1-888-270-9371).
• If an owner has previously paid for their vehicle’s accelerator pedal and/or floor surface to be
modified to address this specific condition, they are requested to mail a copy of the repair order, proof-of-payment, and proof-of-ownership to the following address for reimbursement consideration Toyota Motor Sales, U.S.A., Inc
Toyota Customer Experience Center, WC10
19001 South Western Avenue
Torrance, CA 90509
7. Media Contacts
For News media inquiries only:
Due to the nature of this Safety Campaign, it is imperative that all media contacts (local and national) receive a consistent message. In this regard, all media contacts must be directed to Brian Lyons (310) 468-2552, John Hanson (310) 468-4718, in Corporate Communications. (Please do not provide these numbers to customers or direct dealership associates to call).
Please review this entire package with your Service and Parts staff to familiarize them with the proper step-by-step procedures required to implement this Special Service Campaign.
Thank you for your cooperation.
TOYOTA MOTOR SALES, U.S.A., INC.
Safety Recall A0A - (MODEL) Vehicles
Accelerator Pedal Reinforcement Bar Installation
Sample letter to be mailed to Toyota customers:
SAFETY RECALL NOTICE
Dear Toyota Customer:
This notice is being sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act.
Toyota has decided that a defect, which relates to motor vehicle safety, exists in (MY) model year (Model) vehicles.
What is the condition?
There is a possibility that certain accelerator pedal mechanisms may mechanically stick in a partially depressed position or return slowly to the idle position. Over time, the internal mechanisms in the accelerator pedal may become worn. As a result of this wear combined with certain operating and environmental conditions, friction in the mechanism may increase and intermittently result in the accelerator pedal being hard to depress and/or slow to return
or, in the worst case, stick in a partially open position, increasing the risk of a crash.
What will Toyota do?
Any authorized Toyota dealer will install a precision-cut steel reinforcement bar into the accelerator pedal assembly, which will increase the clearance in between the internal mechanisms in the accelerator pedal assembly. This increased clearance will reduce the friction caused by wear and environmental conditions and allow the pedal to operate smoothly for the life of the vehicle. The safety recall remedy will be performed at no charge to the vehicle
owner.
What should you do?
This is an important Safety Recall Please contact your authorized Toyota dealer to install the precision-cut steel reinforcement bar into the accelerator pedal assembly as soon as possible. The installation will take approximately 30 minutes. However, depending upon the dealer’s work schedule and the inspection results, it may be necessary for you to make your
vehicle available for a longer period of time.
We request that you present this notice to the dealer at the time of your service appointment.
If you would like to update your vehicle ownership or contact information, please go to
www.toyota.com/ownersupdate. You will need your full 17-digit Vehicle Identification Number (VIN) to input the new information.
What if you have other questions?
Your local Toyota dealer will be more than happy to answer any of your questions and set up an appointment to perform this important Safety Recall. If you require further assistance, you may contact the Toyota Customer Experience Center at 1-888-270-9371 Monday through Friday, 5:00 am to 6:00 pm, Saturday 7:00 am through 4:00
pm Pacific Time.
If you believe that the dealer or Toyota has failed or is unable to remedy the defect within a reasonable time, you may submit a complaint to the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue S.E., Washington, DC 20590 or call the toll free Vehicle Safety Hot Line at 1-888-327-4236 (TTY: 1-800-424-9153),
or go to http://www.safercar.gov.
What if you have previously paid for your vehicle’s accelerator pedal to be replaced to address the specific condition described above?
If you have previously paid for your vehicle’s accelerator pedal to be replaced to address the specific condition described above, please mail a copy of your repair order, proof-of-payment, and proof-of-ownership to the following address for reimbursement consideration:
Toyota Motor Sales, U.S.A., Inc, Toyota Customer Experience, WC10
19001 South Western Avenue, Torrance, CA 90509
If you are a vehicle lessor, Federal law requires that any vehicle lessor receiving this recall notice must forward a copy of this notice to the lessee within ten days.
We have sent this notice in the interest of your continued satisfaction with our products and we sincerely regret any inconvenience this condition may have caused you.
Thank you for driving a Toyota.
Sincerely,
TOYOTA MOTOR SALES, U.S.A., INC.
Wednesday, January 27, 2010
Toyota Safety Recall Information
Toyota announced 1/26/10 a temporary stop sale on most vehicles that it builds in the United States. This is what I know as of 1/27/2010. I spoke with our district manager last night. There are two manufacturers for the accelerator pedals that Toyota uses, Denso and CTS. I believe that Denso produces the pedals for Lexus and the Japanese built Toyotas as well as all Scions, and CTS produces most of the pedals for the vehicles produced here. The vehicles with the CTS pedal are the ones affected.
The included vehicles are: Toyota, Avalon, Corporate, Camry (some), Corolla, Matrix, Highlander, RAV4, Sequoia, Tundra.
If you own one of these cars, you are not affected: All Lexus or Scion, also not affected are Toyota Prius, Tacoma, Sienna, Venza, Solara, Yaris, 4Runner, FJ Cruiser, Land Cruiser, Highlander hybrids and select Camry models, including all Camry hybrids, which will remain for sale.
This is not the same recall that requires shortening the accelerator pedal so that it does not come in contact with the floor mat! Unfortunately the 911 call from a related incident has been incorrectly re-played by some of the media. It is unfortunate and also incorrect.
Jim McNatt Toyota joined a conference call held by Toyota officials for Gulf State Toyota dealers,and during the question and answer period it was asked if anyone had any vehicle in service or heard of any issue with a sticking pedal and not one dealer had or even heard of one. I believe the problem is that the pedals may become sticky over time and I have seen my share of 300,000 plus mile Toyota's since I began here in ’05. Toyota is an ultra conservative company, that is why the stopped sale on the effected cars. I also, believe this is the main reason they have the excellent reputation for quality.
As posted in my previous blogs, I used to bleed Ford blue. I had a big chip on my shoulder back in '05 when I started here about what I believed as "So Called Toyota Quality". As I stated, I have seen more than my share of 300,000 mile Toyota's. I now believe them to be the best car manufacturer provide the best quality, long lasting vehicles that my precious money can buy. My chip is long gone.
Here is the fix: Denso is ramping up production and will begin producing enough pedals to change out all of the CTS pedals in as little as 14 days.
If you are experiencing a sticky pedal: Call our service department (888-285-2372) so an appointment can be scheduled. Although extremely rare, for those experiencing a sticky pedal, transportation will be provided to you and no cost. The symptoms may present as such: The condition does not occur suddenly. It can occur when the pedal mechanism becomes worn and, in certain conditions, the accelerator pedal may become harder to depress, slower to return or, in the worst case, stuck in a partially depressed position.
You may call the Toyota Cares hotline at 800-331-4331 between the hours of 5am to 6pm Mon-Fri and Sat 7am to 4pm. Click www.toyota.com for latest details.
Update 1/28/10 Statement from Toyota on Supplier CTS
http://pressroom.toyota.com/pr/tms/manufacturing/statement-from-toyota-on-supplier-153203.aspx
Toyota Motor Engineering & Manufacturing North America (TEMA) has been working closely with supplier CTS on a revised design that effectively remedies the problem associated with accelerator pedals. Pedals featuring the revised design are now in full production at CTS to support Toyota’s needs. Meanwhile, we are also working with them to test effective modifications to existing pedals in the field that will be rolled out as quickly as possible.
“We commend CTS for working diligently and collaboratively to find a solution to the potential problem and in developing a new design,” said Chris Nielsen, TEMA’s Vice President of Purchasing. “CTS is a long-term and valued supplier to us.”
Wednesday, January 20, 2010
Tips to improve gas mileage
I know that gas is on the cheap now compared to last summer’s high of over four dollars per gallon. I also believe that the price will go back up with the summer driving season. I am paid on a commission basis and because of the struggling economy; my pay has gone down with it. That means two dollar per gallon gasoline is like four dollar per gallon to me! I have to think about stretching dollars now more than ever. I don’t think that I am the only one.
Back to saving YOU money… These guys did off the wall things to improve mileage, like removing the outside mirrors and installing “moon” wheel covers to reduce drag. I am not advocating this, and the fuel mileage improvements from those two items were minor. What was surprising, is that they reported a three mile per gallon improvement just by switching to synthetic oil. I will use synthetic only from now on. The main reason synthetic oil improves mileage is because it reduces friction. It doesn’t take much to connect the dots here; if it reduces friction then it stands to reason that it will substantially reduce wear as well. That is why Toyota’s new 2.7 liter 4 cylinder engines require only full synthetic oil. Synthetic oil is a little more expensive than conventional but has extended change intervals.
Another recommendation was window tinting. They estimate that the average car air-conditioning compressors require about six horsepower to run. Installing window tint help keeps the interior cooler and reduces the draw on that six horsepower robbing compressor!
Making sure your tires are properly inflated will also maximize fuel economy by reducing rolling resistance. This doesn’t add to your fuel mileage but most likely your tires are under inflated and that definitely hurts your gas mileage! It substantially decreases tire life too. Keep your tires properly inflated!!!
It’s no coincidence that the things needed to maximize fuel economy also makes your car last longer. Making your car last longer with a small dollar and time investment and getting a return in lower gas bills… Sounds like a no-brainer!
Toyota Announces Details of Remedy to Address Potential Accelerator Pedal Entrapment
The models involved are: 2007 to 2010 MY (model year) Camry, 2005 to 2010 MY Avalon, 2004 to 2009 MY Prius, 2005 to 2010 MY Tacoma, 2007 to 2010 MY Tundra, 2007 to 2010 MY ES350, 2006 to 2010 MY IS250, and 2006 to 2010 MY IS 350.
The specific measures of the vehicle-based remedy are as follows:
1. The shape of the accelerator pedal will be reconfigured to address the risk of floor mat entrapment, even when an older-design all-weather floor mat or other inappropriate floor mat is improperly attached, or is placed on top of another floor mat. For the ES350, Camry, and Avalon models involved, the shape of the floor surface underneath will also be reconfigured to increase the space between the accelerator pedal and the floor.
2. Vehicles with any genuine Toyota or Lexus accessory all-weather floor mat will be provided with newly-designed replacement driver- and front passenger-side all-weather floor mats.
In addition, as a separate measure independent of the vehicle-based remedy, Toyota will install a brake override system onto the involved Camry, Avalon, and Lexus ES 350, IS350 and IS 250 models as an extra measure of confidence. This system cuts engine power in case of simultaneous application of both the accelerator and brake pedals.
Toyota is in the process of completing development of these actions and for the ES350, Camry, and Avalon will start notifying owners of the involved vehicles via first-class mail by the end of this year. The remedy process regarding the other five models will occur on a rolling schedule during 2010.
Dealers will be trained and equipped to make the necessary modifications to these models starting at the beginning of 2010. Initially, dealers will be instructed on how to reshape the accelerator pedal for the repair. As replacement parts with the same shape as the modified pedal become available, they will be made available to dealers for the repair, beginning around April 2010. Customers who have had the remedy completed will have the opportunity to receive a new pedal if they desire.
In the meantime, owners of the involved vehicles are asked to take out any removable driver’s floor mat and not replace it with any other floor mat until they are notified of the vehicle-based remedy, as notified in the consumer safety advisory and the interim notice.
The brake override system will be made standard equipment throughout the Toyota and Lexus product lines starting with January 2010 production of ES350 and Camry and is scheduled to be incorporated into new production of most models by the end of 2010.
The safety of our owners and the public is our utmost concern and Toyota has and will continue to thoroughly investigate and take appropriate measures to address any defect trends that are identified.
Owners who have further questions are asked to visit www.toyota.com or www.lexus.com or contact the Toyota Customer Experience Center at 1-800-331-4331 or Lexus Customer Assistance at 1-800-255-3987.
Toyota Floor Mat Recall
Toyota Motor Sales, USA, Inc. takes public safety very seriously. It believes its vehicles to be among the safest on the road today.
Recent events have prompted Toyota to take a closer look at the potential for an accelerator pedal to get stuck in the full open position due to an unsecured or incompatible driver's floor mat. A stuck open accelerator pedal may result in very high vehicle speeds and make it difficult to stop the vehicle, which could cause a crash, serious injury or death.
Toyota considers this a critical matter and will soon launch a safety campaign on specific Toyota and Lexus vehicles. Throughout the process of developing the details of the action plan, it will advise the National Highway Traffic Safety Administration (NHTSA).
Until Toyota develops a remedy, it is asking owners of specific Toyota and Lexus models to take out any removable driver’s floor mat and NOT replace it with any other floor mat. The following models are affected:
• 2007 – 2010 Camry
• 2005 – 2010 Avalon
• 2004 – 2009 Prius
• 2005 – 2010 Tacoma
• 2007 – 2010 Tundra
• 2007 – 2010 ES350
• 2006 – 2010 IS250 and IS350
Should the vehicle continue to accelerate rapidly after releasing the accelerator pedal, this could be an indication of floor mat interference. If this occurs, Toyota recommends the driver take the following actions:
First, if it is possible and safe to do so, pull back the floor mat and dislodge it from the accelerator pedal; then pull over and stop the vehicle.
If the floor mat cannot be dislodged, then firmly and steadily step on the brake pedal with both feet. Do NOT pump the brake pedal repeatedly as this will increase the effort required to slow the vehicle.
Shift the transmission gear selector to the Neutral (N) position and use the brakes to make a controlled stop at the side of the road and turn off the engine.
If unable to put the vehicle in Neutral, turn the engine OFF, or to ACC. This will not cause loss of steering or braking control, but the power assist to these systems will be lost.
-If the vehicle is equipped with an Engine Start/Stop button, firmly and steadily push the button for at least three seconds to turn off the engine. Do NOT tap the Engine Start/Stop button.
-If the vehicle is equipped with a conventional key-ignition, turn the ignition key to the ACC position to turn off the engine. Do NOT remove the key from the ignition as this will lock the steering wheel.
In the event owners choose not to remove their floor mat, Toyota strongly recommends that they ensure that the correct floor mat is being used, that it is properly installed and secured, that it is not flipped over with bottom-side up, and that one floor mat is not stacked over another. Information on proper floor mat installation can be found on http://www.toyota.com and http://www.lexus.com.
Owners with questions or concerns, are asked to please contact the Toyota Customer Experience Center (1 800 331-4331) or Lexus Customer Assistance Center (1 800 255¬3987), or consult the information posted at http://www.toyota.com and http://www.lexus.com.
September 29, 2009
EXAMPLE OF PROPERLY INSTALLED FLOOR MAT
- click here for Toyota & Lexus Carpeted/All-Weather Floor Mat Inspection, Application & Installation Instructions
- click here for Toyota Carpet Floor Mat Application Information Chart
- click here for Lexus Carpet Floor Matt Application Information Chart
- click here for Toyota All Weather Floor Mat Quick Reference Chart
- click here for Lexus All Weather Floor Mat Quick Reference Chart
2010 CrewMax Tundra Grade vs. 2010 Chevrolet 1500 Crew Cab LS
Size matters when the crew is big
• Tundra offers 5.5 inches more leg room and 1.5 inches more shoulder room
• Besides stretching their legs, rear-seat passengers can relax with the reclining seat back
• Chevy rear seat doesn't recline; bottom cushion flips up to expand storage room
• Tundra CrewMax rear seat folds down to provide work surface and create more storage room
• Tundra CrewMax offers standard 13.9-inch front disc brakes, 13.6-inch rear disc brakes; Silverado 1500 Crew Cab LS comes with 13.0-inch front disc brakes and 11.6-inch rear drum brakes.
More engine power
• Chevy brags about 6.0-liter and 6.2-liter V8 engines in Silverado, but neither is available for the Silverado 1500 Crew Cab in LS or WT trim
• Tundra CrewMax has available 5.7-liter V8 with 380 horsepower, 401 lb-ft peak torque
• Standard on CrewMax Tundra Grade is 4.6-liter V8 with 310 horsepower, 327 lb-ft torque
• Silverado 1500 Crew Cab LS offers only 4.8-liter V8 with 302 horsepower, 305 lb-ft torque
• Chevy Crew Cab LS customers must switch down to the WT trim or pay more for the LT trim to find a bigger engine. The optional 5.3-liter V8 has 315 horsepower and 338 lb-ft torque, but it still doesn't compete with the Tundra's 5.7-liter i-Force V8
More towing power
• Tundra Grade CrewMax with 5.7-liter V8 and factory tow package has a max tow rating1 of 10,400 pounds (4x2) or 10,100 pounds (4x4)
• Tundra Grade CrewMax with 4.6-liter V8 and factory tow package has a max tow rating of 7,000 pounds (4x2) or 6,700 pounds (4x4)
• Silverado 1500 Crew Cab LS with 4.8-liter V8 (remember, that's all that's available in the LS trim) has a max tow rating of 6,700 pounds (4x2) or 5,400 pounds (4x4)
More convenience
• Tundra CrewMax comes standard with power vertical sliding rear window; offered only as an option on Silverado 1500 Crew Cab upper trim levels, not WT or LS
• Tundra CrewMax offers standard easy-up/easy-down tailgate; EZ Lift tailgate offered only as an option on Silverado 1500 Crew Cab upper trim levels, not WT or LS
• Tundra CrewMax offers available DVD navigation system; navigation not available on Silverado 1500 Crew Cab LS or WT
Tuesday, September 22, 2009
F-150 Silverado Toyota Tundra Tow Ratings
Tow Ratings
Common Mistakes to Avoid:
Don’t be misled by claims of a maximum tow rating. Towing capacity is NOT regulated by any government agency like NHTSA. So you can never compare “Apples to Apples” when talking about towing. It is up to the manufacturer to decide what the maximum tow capacity for their respective truck. I sleep well at night knowing that when Toyota places a 10,800 pound capacity on Tundra is for capability not “Bragging Rights”. That means if you what to pull a trailer with your Tundra you can do it every day all day. All Tundra’s have a tow rating of at least 10,000 pounds when equipped with the 5.7 V8 and factory tow package.
The maximum tow rating for any ½-ton pickup is never applied to every model in that brand's line, including Toyota. Tow ratings will differ between models due to different vehicle weights and powertrain options. A Regular Cab 4x2 equipped with the V6 engine will have a different tow rating than a Double Cab 4x4 with the 5.7-liter V8. It's important to cross check your towing needs against the tow rating for the desired model.
The Tundra's maximum tow rating of 10,800 pounds cannot be quoted for every model, but Tundra still provides competitive ratings across the line.
The Point is…
1. All Tundra cab/bed configurations have a tow rating of at least 10,000 pounds when equipped with the 5.7-liter V8 and factory tow package
2. 4x2 trucks usually have a higher tow rating than comparable 4x4 models
3. Options such as color-keyed bumpers, 20-inch wheels can reduce the tow rating
4. Competitive ½-ton pickups may require "heavy-duty" or "enhanced" packages to achieve their maximum tow ratings
5. Toyota has specific recommendations for hitches and sway control when towing trailers of certain weights
Tuesday, July 21, 2009
Toyota Cash for Clunkers Program

A billion dollars sounds like a lot of money. But it breaks down something like this: The government rebates are either $3500 or $4500. Let’s just take the average of the two, $4000. 4000 goes into one billion two hundred and fifty thousand times (250,000). I think that I heard that across the country there are roughly 750,000 clunkers that will qualify. That means potentially two thirds of the people that qualify will be left out! The boost this program will bring will raise the car sales rate to about one million units per month. Huh?... This thing will be out of cash in just a couple of weeks.
This isn’t a scare tactic, just the math. If you are interested in this program don’t hesitate. One news cast that I watched said, “If you miss this your golden chariot will turn back into a pumpkin.”
T.J. Houghton
General Sales Manager
tjh@mcnattautogroup.com
Monday, April 6, 2009
Fuel Economy Tips

Saturday, April 4, 2009
Tax Write-Off on new purchases!

IR-2009-30, March 30, 2009
WASHINGTON — The Internal Revenue Service announced today that taxpayers who buy a new passenger vehicle this year may be entitled to deduct state and local sales and excise taxes paid on the purchase on their 2009 tax returns next year.
“For those thinking about buying a new car this year, this deduction may give them a little more drive to make their purchase this year,” said IRS Commissioner Doug Shulman. “This deduction enables taxpayers to buy now and get cash back later on their tax returns.”
The deduction is limited to the state and local sales and excise taxes paid on up to $49,500 of the purchase price of a qualified new car, light truck, motor home or motorcycle.
The amount of the deduction is phased out for taxpayers whose modified adjusted gross income is between $125,000 and $135,000 for individual filers and between $250,000 and $260,000 for joint filers.
IRS also alerted taxpayers that the vehicle must be purchased after Feb. 16, 2009, and before Jan. 1, 2010, to qualify for the deduction.
The special deduction is available regardless of whether a taxpayer itemizes deductions on their return. The IRS reminded taxpayers the deduction may not be taken on 2008 tax returns.
Friday, March 20, 2009
Making of the Toyota Tundra Superbowl Commercial
TJ
Saturday, February 14, 2009
It's not just Raw Horsepower that gets the job done.
The all new Toyota Tundra is a very impressive truck. Motor Trends truck of the year as well as many other well deserved awards. Prior to actual launch of the Tundra I was able to visit Toyota’s truck plant in Indiana. We saw raw materials being delivered to the facility as well as all aspects of assembly all the way to watching finished Tundra’s being started up and driven off of the assembly line. (I understand that starting and driving a vehicle off of the assembly line may not be standard practice with other manufacturers.) I came away with a profound appreciation and respect for Toyota’s commitment to building high quality vehicles.
In addition to touring the manufacturing plant I was also able to spend time at the Toyota proving grounds and drive the trucks offered by Ford, Chevy, and Nissan for comparison. Toyota spoke to us in a very frank and humble manor. Their opinion was that this may be the last chance they have to really get into the full size truck market. Yes, the quality has always been great but Toyota has never had a truck that they could actually call “Full Sized”. The T100 was available in regular cab only. The first generation Tundra was often referred to as a 7/8th sized truck. Almost, but not quite there.
Enter the All new Tundra…
Knowing that this could be the last chance to get into the full size truck business Toyota purposely over -built the Tundra for the half ton market. What does this mean to you? Simple. You get to reap the benefits of a truck that out performs any of the half ton trucks on the market today.
When are brakes not just brakes?
One of the many things that impressed me is the design of the brakes. Yes, they are bigger and stronger than everyone else’s but it goes much deeper. The braking system on the Tundra is the part of an integral system that Toyota calls: Star Safety System™ - Vehicle Stability Control (VSC) + Traction Control (TRAC), 4-wheel disc Anti-lock Brake System (ABS) with Electronic Brake-force Distribution (EBD) and Brake Assist, as well as being a key ingredient of Toyota’s auto limited slip differential that gives up to 15% better traction than the competition’s plain limited slip differentials.
Let’s discuss this a little further. The front brakes on the Tundra are a four piston “Fixed Caliper” design. This is a design used in racing. It provides more stopping power with a quicker reaction time. Plus, in comparison to most of the competition, all four of the Tundra’s brakes can be operated independently. This is very important. Once you can control each brake individually it opens up all kinds of possibilities, specifically the Star Safety System and Auto LSD referred to in the previous paragraph. Here is a great video showing Tundra's LSD and 6-speed tranny whoopin' up on an F-150.
First is Vehicle Stability Control (VSC). (Do not try this at home.) My son and I ride motorcycles on the weekends. We loaded up the Tundra with our bikes and gear and headed to one our favorite places. On the way it began to rain heavily. Being the optimists that we are, we continued in hopes that it would clear up by the time we arrived so that we would still be able to ride. The rain kept coming and the dips in the road began to gather rain. Soon the water was nearly crossing the entire road. We hit one to these rather large puddles and the truck shuttered slightly, then settled down and we plowed through with water flying everywhere. My son Tyler looked at me and said, “Dad, did you do that?” I said no then looked at the dash and noticed a light shaped like a car with squiggly lines flashing. My truck was smart enough to know what I was trying to do and applied the brakes individually in a manner that had the best chance at keeping us on our intended path! Wow… If anyone reading this knows my wife please DO NOT tell her about the next part… After a short description to Tyler of what just happened we began to look for bigger puddles! Soon we found a large enough volume of water that when hit, the truck backed out of the throttle (another part of VSC) and began to apply the brakes. We literally felt the truck hunting for pavement. Water was flying everywhere and Tyler and I were grinning from ear to ear. Once all of the wheels were back in contact with the road the engine began to pick up speed and off we went! I love this truck!
The next really practical application of Toyota’s brake technology is in their auto limited slip differential. Anyone my age or older can remember when all cars were rear wheel drive as opposed to the front wheel drives on most cars today. I have seen more than my share of cars on the side of the road with one of the back wheels in the ditch. The car would be stuck, with the wheel in the ditch spinning wildly. These cars had open differentials. That means that the power follows the path of least resistance or simpler put the power goes to the wheels with the least traction.
Enter Toyota Brake Technology…
What would happen if you could independently control each brake and knowing that, you took an open differential, applied the brakes to the wheel that is spinning? Right! Toyota’s Auto Limited Slip Differential. What exactly does this mean? It means that the Tundra is smart enough to know that when one of the back wheels is spinning faster than the other there is a low traction situation. It will apply the brakes to the wheel that is spinning. This in turn sends the power to the wheel that has the traction. It means that I personally witnessed and drove a two wheel drive Tundra through places and obstacles at the Tundra proving grounds that other makes could only pass through in four wheel drive! (Sometimes barely) I love this truck!
Are Tundra’s brakes better than the competition’s?
Yep.
For more information on Toyota’s Star Safety System and Auto LSD go to http://www.toyota.com/ .
Thursday, February 5, 2009
Why Toyota Tacoma is Tops!
The U.S. News Media Group, which includes U.S. News & World Report, released its first annual Best Cars for the Money awards, and Tacoma captured Best Compact Truck for the Money honors. Of the 14 vehicle categories, Toyota won five. Other winners were Camry, Highlander, Sienna and Avalon. Lexus also captured three awards with ES, RX and GS models.
According to the news release from U.S. News Media Group, the honor recognizes the vehicles that earn the highest marks for overall value and appeal within their category. U.S. News says it combines its own 2009 Car Rankings with cost of ownership data provided by IntelliChoice.com. The Car Rankings are based primarily on the "balanced, diverse opinions of hundreds of professional auto critics," according to U.S. News.
In recognizing the Tacoma, U.S. News said, "The 2009 Toyota Tacoma is a strong choice among compact pickups for its car-like interior, as well as its practical capabilities."
U.S. News gave the Tacoma an overall average score of 9.1 in ranking compact trucks. In breaking down the numbers, U.S. News gave Tacoma 9.9 for safety and a 9.0 for reliability. It also acknowledged Tacoma's "polished engine options," "strong off-road performance" and "impressive crash test scores."
The U.S. News honor wraps up a strong year of awards for the Tacoma, which is easily the best-selling compact truck on the market. Here's a recap of other recent accolades bestowed on the truck:
- Named "Best in Class" by Truck Trend magazine
- Named "2009 Top Safety Pick" by Insurance Institute for Highway Safety (IIHS.) Tacoma is the only compact pickup on the list of 72 vehicles
- Named "2009 Residual Value Award" by Automotive Lease Guide
- Named "2009 Best Resale Value" by Kelley Blue Book
- Named "Best Midsize Truck" by Texas Auto Writers
- Named "Consumers Top Rated Vehicle Award" in compact truck category by Edmunds.com
To learn more:
http://usnews.rankingsandreviews.com/cars-trucks/best-cars-for-the-money/
http://www.trucktrend.com/features/consumer/163_0806_2008_best_in_class_compact_pickup/index.html
Friday, January 30, 2009
Fuel Economy and Performance
This year GM and Ford introduced special packages for their full-size pickups that promise improved fuel economy. Sometimes the fuel economy estimates are mentioned in the same breath as the max towing capacity for the entire line. That can be misleading because no truck hauls 5½ tons and still gets 20 miles to the gallon. You have to equip a truck for one or the other, but not both.
First, here’s a quick review of the special fuel economy models from the competition:
Ford SFE (Superior Fuel Economy)
Available only on SuperCrew XL and XLT 4x2 w/ 5.5-foot cargo bed Includes 4.6-liter, 3-valve V8 engine, 6-speed automatic transmission, 3.15:1 axle ratio
EPA estimated mileage: 15mpg city/21mpg highway; combined rating: 17mpg*
Engine power: 292 horsepower, 320 lb-ft torque; Max tow rating: 7,500 pounds
Chevrolet Silverado XFE and GMC Sierra XFE (Xtra Fuel Economy)
Available only on Crew Cab 4x2 w/ 5.8-foot bed (LT trim for Chevy, SLE for GMC)
Includes 5.3-liter V8, 6-speed automatic transmission, 3.08:1 axle ratio
EPA estimated mileage: 15mpg city/21mpg highway; combined rating: 17mpg*
Engine power: 315 horsepower, 338 lb-ft torque; Max tow rating: 7,000 pounds
GM and Ford say the improved mileage comes with the mid-level engine, improved aerodynamics, 6-speed automatic transmission, low-numerical axle ratio and reduced weight.
Look at the real tradeoff of owning one of these special editions when compared to a Tundra Double Cab 4x2 with a 6.5-foot cargo bed and equipped with a 5.7-liter V8, 6-speed automatic transmission and 4.30:1 axle ratio. The Tundra has an EPA estimated combined rating of 16mpg, just one mpg less than the Ford and Chevy special editions with smaller engines. Meanwhile, the Tundra's bigger i-Force engine is rated at 381 horsepower with 401 lb-ft of torque. This particular Tundra configuration is rated to tow 10,600 pounds when equipped with the factory tow package.
According to fueleconomy.gov, the Chevy and Ford's annual operating cost would be $1,596. The Tundra's would be $1,697. That's based on 15,000 miles driving with 45% on the highway and 55% in the city. Cost of gasoline for this calculation was $1.81 per gallon in mid-December. Overall, the Chevy and Ford would use 20.1 barrels of oil while the Tundra would use 21.4 barrels annually.
The bottom line for truckers is the trade off between operating cost and capability. The Tundra costs only $101 more each year in gasoline but can tow 3,600 pounds more than the Chevy and 3,100 pounds more than the Ford. Even when towing identical loads, the Tundra will accelerate quicker and pull harder on mountain roads, all for about 28 cents a day more in gasoline.
* 2009 EPA MPG estimates. Actual mileage will vary.
Tuesday, January 27, 2009
You may qualify for $3500 towards replacing your vehicle!
Jim McNatt Toyota has teamed up with AirCheckTexas Drive a Clean Machine: Now get up to $3,500 towards buying a newer vehicle to help reduce emissions!Under the AirCheckTexas Drive a Clean Machine program, the Texas Commission on Environmental Quality is offering to help qualified owners replace their older, polluting vehicles.
As many as 1.9 million households in 16 counties may be eligible for vouchers to help replace their older car or truck. Individual vouchers are in the amounts of $3,000 or $3,500, depending on the type and age of the replacement vehicle. All Texans who meet certain qualifications can apply.
“We are making a concerted effort to get older, heavy-polluting vehicles either repaired or removed from the road,” said Chairman Buddy Garcia. “To that end, the Legislature approved $90 million this biennium. It is a significant expansion of our effort to reduce onroad emissions in certain areas not complying with federal standards for ozone.”
To qualify for vouchers, motorists must have their vehicles registered in designated counties in the Dallas-Fort Worth area, (Denton Co. is included) and fit the income eligibility scale.For example, DFW area family of four with an annual net income of $61,950 can apply.
The vouchers provide the following:
$3,000 for a car, current model year or up to three model years old
$3,000 for a truck, current model year or up to two model years old
$3,500 for a hybrid vehicle, current or previous model year
All of the vehicles being replaced will be scrapped to make sure they will no longer be used.
As newer cars and trucks are bought each year, the overall Texas fleet gets cleaner. That’s because newer cars and trucks are equipped with high-tech emission controls. Any vehicle that is model 1996 or newer has the benefit of onboard diagnostics.
Currently, 77 percent of the vehicles registered in the Houston, DFW, Austin, and El Paso areas are model 1996 or newer. This segment is expected to grow to 89 percent by 2010. (El Paso has not joined the Drive a Clean Machine program.)
“What we’re doing is trying to speed up the process by helping owners of older vehicles buy cars and trucks that are at least a little cleaner,” said program coordinator Bob Wierzowiecki of TCEQ’s Air Quality Division. “Not everyone can afford a new car. But driving a new car, or a qualifying used car, is better for air quality than driving a vehicle that’s 10 years or older.”
Thanks to technological advances, today’s new vehicles can be up to 98 percent cleaner than those produced 10 years ago, he added.
With the state-funded incentives, 15,000 to 30,000 polluting vehicles could be permanently removed from Texas roads in the next two years, according to TCEQ estimates.
Jim McNatt Toyota is registered with the State of Texas to accept vouchers under this program for people in Denton and other qualifying counties.
Interested in the program? Download the electronic application in a .pdf file to apply for the program in the DFW area. You may also call 940-239-6401 and we will help walk you through the application process.

Call: 940-239-6401
Visit: http://www.driveacleanmachine.org/ for all of the details.
Sunday, January 11, 2009
Karen Severance takes care of her Customers!
Karen Severance has worked for Jim McNatt since 2005. She lives in the neighborhood behind the dealership. She has a degree in recreational therapy. Karen is a mother hen! And I mean that in the best possible way. She takes care of her chicks (customers) as no one else can. In just three short years Karen has developed an extensive client list that keeps her busy. Approximately 80% of her business is repeat or referral.
Anyone that works in other departments at the dealership needing a car comes straight to her because they know that she will do what is best for them. What’s most impressive to me is that when Jim or Al McNatt has a friend in need of a new car they call Karen first. It was great to watch this transformation grow. At first Jim would call my cell and let me know he had a personal friend coming and describe their personality to me so we could pick the best person to help them. Once he started getting feedback from his friends on Karen, he started calling her first! Then he would call my cell or send an email to let me know that they were going to ask for her. Now that is confidence from the boss!
Once we had a lady drove in from Nocona on Al’s recommendation and she asked for Karen. She was busy assisting another customer so another salesperson helped her. (All of our salespeople are great by the way.) Things were going great. The customer picked out a new Sequoia and then called her dad back in Nocona to let him know. Everything went fine until he asked if Karen was helping her. She replied that she had someone else because Karen was with another customer. Dad’s response was, "Come back home, we will do this tomorrow when Karen is available."
Here is a short video of Karen in action so that you can see what we are talking about.
Thank you for watching.
Monday, January 5, 2009
Tundra & Tacoma are Top Safety Pick
Tundra & Tacoma are Top Safety Picks - Tundra is a repeat winner! And Tacoma is the only compact pickup to receive this honor!
Both Tundra and Tacoma have been named a 2009 Top Safety Pick by the Insurance Institute for Highway Safety (IIHS). According to an IIHS news release, dated November 25, 2008, only 72 vehicles were given this honor.
Last year the Tundra was the first and only pickup to earn the IIHS Top Safety Pick. This year Tacoma joins the group and is the only compact pickup listed. Other pickups making the list for the first time include the Ford F-150 and Honda Ridgeline. FJ Cruiser, Highlander and RAV4 also made the list.
According to the IIHS, a Top Safety Pick recognizes vehicles that "do the best job of protecting people in front, side and rear crashes based on good ratings in the Institute tests." All winning vehicles must also have electronic stability control (ESC). The Tundra and Tacoma have Vehicle Stability Control (VSC)--which is Toyota's version of ESC--as standard equipment. VSC is a component of the more comprehensive Star Safety System wich is standard equipment on many of Toyota's vehicles.
The Institute also acknowledges the benefits of side airbags in side-impact crashes. The Tundra and Tacoma offer seat-mounted side airbags and front and rear side-curtain airbags as standard equipment. According to the Institute, only 23% of pickups have standard side airbags with head protection, and only 37% of pickups have ESC.
The Tundra and Tacoma were also equipped with active front head-restraint designs. The Institute said more than 25 vehicles had the required crash-test ratings and ESC but came with "inadequate head restraint designs" and didn't make the final list.
Last summer, Tacoma was the only 2008 compact pickup tested to earn a "good" on side-impact crashes. The other trucks earned either a "marginal" or "poor." Tacoma was also rated "good," which is the Institutes top rating, in frontal impact testing.
To learn more: http://www.iihs.org/
Thursday, December 11, 2008
Electronic Power Steering is a Big Bonus to Venza’s Star Safety System
Electronic Power Steering (EPS)
Compact and lightweight, EPS eliminates many of the parts used in a conventional hydraulic sterring system (pump, hoses, fluid, etc.) for reduced maintenance and repairs.
Without the drag of a conventional power steering pump, EPS is able to improve both engine power output and fuel economy. (Toyota estimates up to 3% improvement in mpg figures.)
EPS makes you safer.
To understand how Toyota's Electronic Power Steering is more than just another power steering system on Venza you must first understand how Vehicle Stability Control works. VSC is just one part of Toyota's Star Safety System that is standard on the new Venza.
Even the best drivers can get caught by a bend that tightens unexpectedly – or the need to brake suddenly in mid-corner. Either action can unsettle the balance of the car. That's when VSC steps in to help the driver regain control quickly.
Sensors continuously monitor and cross-reference speed, steering angle, yaw rate and deceleration. The instant the system detects a loss of control, VSC steps in and momentarily dictates the individual braking force sent to each wheel. It also moderates the throttle until the tendency of the front to run wide (understeer), or the rear to break away (oversteer), is corrected.
Notice that VSC only controls the brake system and throttle. Steering is other very important input and is left up to the driver. During an unexpected driving situation that leads to a skid many things are happening not the least of which is PANIC! During a skid, what direction do you steer? The answer is that you steer into the direction of the skid and this can be counter intuitive to many people. Even if we know what direction we are supposed to turn the wheel, it isn't something that is common. Your heart is in your throat you see you life pass right in front of your eyes and through all of this you need to be a physics professor and know the correct steering inputs.
Do Fuel-Economy Gadgets Really Work?

Do Fuel-Economy Gadgets offer any benefits?
When gas prices are unpredictable and fluctuate wildly, many truck owners look for ways to improve fuel economy. Unfortunately, there are plenty of "snake oil" salesmen preying upon the good intentions of motorists trying to save a few dollars at the pump. These unscrupulous types use infomercials, cheap classifieds and the Internet to hawk all types of "scientifically proven" or "consumer tested" gadgets that guarantee better fuel economy.
Sometimes costing hundreds of dollars, these products often promise "instant savings" and offer dozens of "customer testimonials." In the latest twist, ads for the products take a political and environmental stance, promising less dependency on foreign oil and fewer greenhouse gas emissions. The promoters of these products tug at every vulnerable consumer emotion and fear to sell a product. Despite the claims and purported supporting evidence, there is rarely any scientific foundation to verify the product's effectiveness.
So if you ask why the Tundra doesn't have magnets in the fuel line to "break up the fuel" or a series of wind vanes in the air-inlet to "supercharge" the airflow, you definitlely need to visit the Environmental Protection Agency website. The EPA has conducted exhaustive tests on numerous products that claim to enhance fuel economy and/or reduce emissions. You can download .pdf files of test reports and scientific analysis on individual products by trade name. Some of the tests date back to the 1970s.
A few of the products did improve fuel economy, reports the EPA. However, there was usually a noticeable trade-off in lost power or drivability. And there's always the possibility that mechanical changes to a new vehicle can interfere with warranty coverage if the engine is damaged. Any foreign matter introduced to the fuel or intake systems can dislodge and damage engine internals. The Federal Trade Commission also weighed in on the subject and warns consumers to be "highly skeptical" of gas-saving claims. One product even started an engine fire during testing.
It is important for you to know that Toyota relies on the expertise and experience of hundreds of engineers to design and develop truck engines and transmissions that deliver optimum fuel economy, while providing the power needed to tow and haul heavy cargo. The i-Force engine family uses advanced technology such as dual overhead camshafts (DOHC), Dual Independent VVT-i, 4-valves per cylinder and 4-into-2-into-1 tubular exhaust manifolds to help improve fuel economy without giving up torque and horsepower.
The fact is, if a miracle device that dramatically improved fuel economy existed, every manufacturer would be using it.
To learn more:
http://www.epa.gov/otaq/consumer/reports.htm
http://www.ftc.gov/bcp/edu/pubs/consumer/autos/aut10.shtm
http://www.consumerreports.org/cro/cars/tires-auto-parts/car-maintenance/gassaving-devices-904/overview/index.htm
http://www.popularmechanics.com/automotive/new_cars/1802932.html
