Originally Posted by brandonjansen
Have you recalibrated your speedometer for the larger tires? And are you hand calculating your mileage or going off the EVIC? Either way, if you haven't recalibrated your speedometer both numbers are way off. I pretty much guarantee that you're getting better mileage than you think.
Im going off my mileage on my odometer after i fill up I'm getting 40 miles a 1/4 tank and 90 miles 1/4 on highway miles
I'm filling up every 3 days now i just ordered the diablo tuner dcx i hope it helps I'm going to re calibrate my tire size and mpg tune