Bill, Not foer sure, but I have been told that the EPA has the zinc removed from the Rotella, use the additives for the cam company or the oils that are sold as break in oil, Joe Gibbs, Roush or how ever you spell him. John Althaus 64 Savoy Hemi 4 spd 214-673-7540 cell **************You can't always choose whom you love, but you can choose how to find them. Start with AOL Personals. (http://personals.aol.com/?ncid=emlcntuslove00000002) [Non-text portions of this message have been removed] ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html.