I agree. 91 is a good choice. Bought mine about six months ago with 91k and very little rust. The I6 would "stumble" some times and the fuel milage sucked, +-10mpg. Fixed some vacum leaks,replaced the TPS,O2 sensor,fuel filter, fuel pump and it ran good but the milage didn't improve much. About two weeks ago I had a new cataletic converter instaled and the jeep runs great. Milage has gone to 14.5 - 15mpg witch isn't great but beats the heck out of 10. I'm still running stock 3.55 gears with 35" tires and fifth gear is prity much useless. I plan on doing a 8.8 swap in the rear with 4.88 gears and 4.88s and a locker up front. That should put me at 2600 rpm at 70 mph in 5th gear. Hopefully 16+ mpg.