Posted 11/4/2006 08:58 (#57938 - in reply to #57845) Subject: RE: Winter Engine Oil
Culbertson, MT
JD +50 15w-40 in the 7800, 4250, and 4010. Rotella 5W40 synthetic in the 94 Ford Powerstroke and 02 Chevy Duramax. The Rotella really helps out with cold weather starting.