Motor Oil Info

The most commonly used anti-wear additive in motor oil is zinc dialkyldithiophosphate (ZDDP). ZDDP contains both zinc and phosphorus components working together to provide anti-wear protection, and is most important during cam “break-in” procedures. Proper break-in lubes should be used during the break-in phase for all new or rebuilt engines with flat tappets. These lubricants provide the extra protection required to reduce wear at the point of contact during break-in and help the flat tappet face properly mate with the cam lobe. Once the break-in phase is completed, AMSOIL motor oils, which are formulated with high levels of zinc and phosphorus, will provide premium protection to flat tappet cams.

All engines, especially high-performance modified engines, benefit from oils with superior film strength and anti-wear properties. The flat tappet/camshaft lobe interface is the one area in an engine that has extreme contact load. Since this load increases significantly when non-stock, high-pressure valve springs are employed, the use of properly formulated motor oils is extremely important to reduce wear and extend flat tappet/camshaft life.