So, If im thinking here correctly here this stuff is loaded with zink and phosphorus for camshaft life, so why if any is there a reason to ever use it on a roller engine. I never used a drop in my Demon, complete solid roller engine, just started life with brad penn 20w50 since its a street car and engine oil temps have a tendensy to get higher on the street.

How will break in oil help seat rings, or do anything for the bearings? Low tension rings dont need the "break in" like older rings do correct??