I usually fill the tank on my Cherokee at about 300 to 320 miles but have let it go as far as 360 miles (not willingly, but in can be hard to find a gas station open after midnight in the Asheville NC area!).
Well tonight it was still showing about a 1/4 tank of gas but I'd gone
350 miles so filled up. It took exactly 14 gallons.350 miles... 14 gallons of gas, that's 25MPG!
Out of a 4.0 Cherokee that's phenomenal.
Jeff DeWitt