'91 Trooper with the 2.8...

Have gotten as high as 21 MPG, but usually in the lower 20's on the freeway. Recently had to do a couple of 800 mile round trips, mostly freeway, so I played around a bit trying to figure what affect my new performance chip had.

At 65 (where I normally drive - I know, but dammit I AM a grandpa now! <img src="/forums/images/graemlins/lol.gif" alt="" />) I got about the same, 20.2 to 20.4.

One tank I pushed it up to 70, mileage dropped to 19.5, another I tried 75, I was down to 18.2 on that tank.

My daughter used to have a Jeep Cherokee, I don't think she ever got above 16, even on the freeway...

Jay