Bad Gas Milage

[Brady18]

Hi brady18,

Get your speedometer calibrated for the new tires. You are reading about 10% low and that will bring you up to about 13.2 mpg.

preachp

I plan on getting the truck recalibrated but I did the math for now and I am still coming up with just a tad over 12 mpg's. Maybe I am doing the math wrong but I figured the circumference is 4.24% (108 inches vs 103.6 inches)larger than that of stock and so I used that percentage. Like I said maybe I am doing the math wrong (not a math genius).

 

[Quint]

Will those tuners work on a 2015? They only show for 2014s and earlier

 

[Brady18]

Nope, not yet. They are still working on 2015 I guess. As soon as it is ready though I will be getting one.