09FordFX4

you dont beleive me?

taller tires, they weigh the same, and highway.
pretty simple math. drops rpms, and since they arent hevier than stock, plus with the tune, i gained 2 mpg over stock.

obviously wont happen going up to 35's

TheBlack2011FX4

A. Men. I can't stand these threads.. Do you seriously think you're going to gain MPGs? Just know you're going to lose a lot, it's not hard to understand after the 10000000th thread asking the exact same question...