A good way to kill any diesel engine. Was it the TH200C with those motors? If they would have done a TH2004R and a 3.23 or 3.42 gear combo, it would have got out of it's own way. My understanding is no Olds diesel ever came with a TH2004R trans.I had an 1983 (2 door) Cutlass Supreme RWD with 4.3L V6 Diesel engine which was actually a great car, served me well for a daily driver for the 3yrs I had it. Lent it to a family member one time who filled the gas tank with gasoline, and that was the end of that. I swapped in a 350 Olds gas engine, and my sister drove it for many more years after that.