The older I get the wiser I get. I bought an 08 F-250 Lariat to work out of (yes, young dumb and full of...) Well I am not wanting to downgrade and get a straight work truck that I don't have to worry about putting dents & scratches in. I got diesel b/c I pull a trailer 7 days a week and told best option. One of my buddies uses all gas trucks in f-250 and says gets 16-18 mpg pulling (I think bs b/c I get 10 in my diesel). I am really just trying to get others opinions on gas vs diesel when pulling 18 ft trailer loaded down as well as how many miles is too many miles? I'm looking at a couple 2004 f250 w 125,000 miles for around $13000. I don't mind spending more but trying to get the best truck for the lowest amount but I would rather spend more $ and not have a truck breaking down all the time.