In talking with an engine builder, I was told that almost all
oil makers have remove
Zinc ( I think) from their engine
oil which is causing premature wear and failure on cams and lifters. He is saying to put a can of STP
oil treament in at every oil change. I did post the on another site and they recommend using oil that is about $40 per gallon. I think I would rather buy a can of STP if that works.