Larger Tire MPG?
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Elder User
Joined: Jul 2006
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From: Newtown Pa 18940
Larger Tire MPG?
I put 35" tires on my truck and I noticed the change in my MPG. How will the larger tires effect the speedometer? The trucks MPH is off and that will effect the MPG?
Posting Guru
Joined: Apr 2004
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From: Georgia
With 35s, all you have to do is go to your dealer and they can reprogram the computer to compensate for it. It cost me around 65$ to have mine done. By the way once I got mine done and checked the MPG, my highway mileage got better because the taller tires changed my final drive ratio and put my truck back into the RPM range that gets the best mileage. I have 4.10 ratio.
Junior User
Joined: Jun 2007
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With 35s, all you have to do is go to your dealer and they can reprogram the computer to compensate for it. It cost me around 65$ to have mine done. By the way once I got mine done and checked the MPG, my highway mileage got better because the taller tires changed my final drive ratio and put my truck back into the RPM range that gets the best mileage. I have 4.10 ratio.
Senior User
Joined: May 2006
Posts: 482
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From: Woodside, CA
any increase in tire size will affect mpg but you can get ur speedo recalibrate at the dealer like mentioned above or get a superlift tru speed. it can be recalibrate to any size tire and has 2 settings if u switch between tires for seasons.
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