Originally Posted by Bishop
Also, I don't believe a gear change will help mpgs. Its more the tires causing a loss in mpgs then anything else. It sits higher, more rolling resistance and on and on...
keep the 31's for best mileage. As soon as those larger tires are put on you'll never get factory millage no matter what gear you run.
Exactly! If you are so worried about mileage keep your little tires on maybe lower it or don't drive a jeep. I doubt ur getting that bad of mileage or something is seriously wrong.
Compare your speed on a gps to what it says on the gauge. It probably will be a little higher therefore your going further per tank then it says. Divide how many miles u get per tank by the amount of gals it takes to fill. If you get 10 mpg your most likely getting 11-13