ZDDP Zinc Oil Additive (12 bottle case)
ZDDP (Zinc Dialkyldithiophosphates) is an additive found in motor oils that serve as an anti-wear agent where any metal to metal contact is made in an engine. Flat tappet camshafts, timing gears, piston skirts, piston rings, bearings, rocker arms, etc. are some of the high wear metal to metal contact points that benefit from the ZDDP protection.
Adding a 4oz bottle of ZDDPlus® Oil additive, to every 5 quarts of your typical diesel motor oil will increase the ZDDP levels by 1256 PPM(Phosphorus) and 1751 PPM(Zinc). 2 bottles per oil change will put the levels back where they should be.