Zinc Rich Oil for Flat Tappet Cams

One more thing too......if you decide to run a ZDDP additive, make SURE it has ZDDP in it. Believe it or not, a LOT of them don't. We sell one at O'Reilly that has ZDDP all over the front, but in the fine print, it says "contains no zinc or phosphorus". So READ what you buy.