I just found out I had a lifter that has been dished out due to excessive wear, I spoke to a couple guys and shops they indicated its due to lack of Zinc in the oils off the shelf. I have done some research and am having a hard time figureing which additive to use, Any suggestions. This is in a weekend driver nothing hot just a weekend hot rod, dont race it or hammer it, just a cruiser. Already dropped another fresh engine, just dont know what additive.