I have a 1997 Jeep Wrangler.It has a 4.0 liter and 5 speed manual trans. It as 151,000 miles and climbing. I have alway got 19 to 20 MPG's on the highway and 15MPG in town if I can keep my foot out of it. I have pulled a 17' bass boat with it from day one. I can't count how many fishing trips we've taken to Grand, Beaver and Table Rock in the old Jeep. It has never used oil. My biggest expense I have had, tires every 50,000 miles and a new soft top this year.