" From: Wrambler242@xxxxxxxxxxx " " " " EOS is General Motors engine Oil Supplement. Someone has the part number here I think. Most dealers don't stock it. I might be able to find a part number for it. I would have to go look on the archives here or over on the Strokers list. EOS is high in ZDDP and such for breakin purposes mostly, but a lot of people are taking to running it in flat tappet engines. if you can't find eos, the other thing is the oil rating. it's not enough to just get diesel oil like rotella; check the api rating logo. to get high zddp you need oil rated si or ci or earlier. some diesel oil is rated ci but some is cm, just as most spark oil these days is sm rated - low zddp. ________________________________________________________________________ Andrew Hay the genius nature internet rambler is to see what all have seen adh@xxxxxxxxxxxxxxxxx and think what none thought _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://www.amc-list.com/mailman/listinfo/amc-list