I never thought about it, but you know it makes sense that thye may indeed leave some of the antifoaming agents out of diesel spec oils. After all a Diesel is not going to see very much rpm... -- Mark Price Morgantown, WV 1969 AMC Rambler, 4.0L, EFI, T-5 2004 Grand Cherokee Laredo, 4.7L, Quadratrc II " Chronic Pain Hurts" -------------- Original message ---------------------- From: Davis Martin <martin-davis@xxxxxxxxxxxxx> > If your running Hi RPM's the Rotella will foam. > Valvoline " Not street Legal" racing oil is a good hi zink oil. about 1/2 the > cost of Gibbs > Davis > > Nick ALFANO <71amx@xxxxxxxxxxxxx> wrote: _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list