YMMV, I was getting 18 on 235s, with the 4.0, auto, and 3.73s. Not so much the 2" lift, but the larger tires will pull you down. I lost 3 MPG going from 235s to 31s. And gained back 2 slipping back to 30s.
I do like the places the 30s can get me. But I do realize limitations. I'm never going to get into places 33s or bigger will go. Not without a lot of hurt.
Originally Posted by ErikTheRad
So when I mount the new OME 2" lifted springs and 31" tires, I can expect to lose 2-3 mpg? So, from crap mileage to SERIOUS crap mileage? I only get about 12-14 mpg now on 235/75-15's, I can't imagine it getting much worse. Its a 93 5.2 w/ 3.73's.