At 10 MPG I am not sure how long I am willing to drive this thing (88 V3500 3+3 Dually). I paid $5500 a couple months ago for it: Changed a few sensors, complete tune up and installed a 93 454SS intake (worth 20HP according to GM) when changing the intake gasket. I have about $5800 in it. Body is awsome except for the peeling paint, no rust no dings tubs are perfect. Came from West coast, I know the guy that imported it. Has 454TBI,th400,NP205,D60,D70HD with 4.10s. Has 81k origional miles runs great, interior is perfect, dual 20 gallons tanks, all new AC (including compressor, lines, acc), tires are new. What I really need is a good running K10 Diesel. I am willing to trade for something that gets better mileage.