Ok Don wrote:
"I'll find out this coming weekend - going to change the oil in the '90 300D 2.5. It will be the first one since I took responsibility for it's care and maintenance. I have to decide whether to get an analysis of the old oil before I switch it to Mobil 1." It has dino 15-40 in it now. I DO NOT want to start another oil thread, but as I understand it, if you have dino oil, there is not really any good reason to change it at extended intervals or worry about the soot content. Did your mysterious running problem fix itself? Just bad fuel? Donald H. Snook 1990 300SEL
