i have a 94 w/ f motor, man i have driven that thing and have a little over 285,000 on her, never had any real problems with her, just get in and starts right up, i haul a 35 ft 5th wheel or i did up to a couple of years ago, i got a duramax now for pulling but i'll tell you, you just can't beat the fuel mileage that 94 get compaired to the duramax, oh i know the duramax will and does out pull the 6.5 but left alone, the 6.5 will run a long time, no mods done to mine and she has never let me down.
I read about all the problems from others and guess i just got lucky, as for the cummins, there great motors too, we have a trucking co and have 15 semi's that only run cummins n 14 plus, great strong motor but i'll stick to my duramax over that hard knocking cummins for my pick up's, i know , they are great motors but before i got my duramax i purchased a dodge and i just llike the way the duramax pulls the hills better. If i can help anyone with a 6.5 just email me,
mokingo6@msn.com