I'm looking to get a used small truck that gets decent MPGS, because I don't want a car lol. I've been looking at Colorados and was wondering how long they are reliable for. I go to college 7 hours away and would be making that trip several times a year, and my price range is about $8,000. Is 140,000 miles too much? 100,000? When looking at the 4 or 5 cylinders is one better than the other? Thanks