I am thinking about buying a 1997 F250 4x4 with a 7.3 turbo desiel with 177000 miles. If the engine has had its normal maintenance of oil changes, what is the expected milage that you would expect to get out of one. It appears this truck was used for leisure and not for work. Also is there any thing to look for or common problems with the turbo diesel? One last question for now, what is the typical city and highway milage that poeple get with these. Thank you very much for any help.