[P944GUY]

OK..I'll bite....would you mind explaining why it would destroy the cam.....some people rave about the Brad Penn oil and use nothing else and use it because it has a small amount of the ZDDP in it....and it's not cheap at $10-11 a quart.......so at $10 a bottle for the ZDDPLUS--seems like a cheaper alternative......haven't used either so I don't know first hand....so the ZDDPlus claims to save your engine by reducing wear :
the ZDDP molecule quickly plates over the contact surface with an extremely thin glass-like film and provides a sacrificial coating. As soon as the engine conditions get back to normal, the film dissipates back into the oil solution. This action prevents the lifter and cam from making contact and greatly reduces the tendency of parts to scuff and gall under heavy-loaded boundary lubrication situations. ..it sounds good, and at one time I'm sure the oil used in my car prior to 1988 had it in it....