Which is why I prefer oil with ZDDP already in it. Look up Hyper Lube ZDDP additive in the clear bottle. Read the back label. It clearly says "Contains no zinc or phosphorus". So you have to be careful when buying additives. Rather than be careful, I just choose oil with ZDDP already in the mix.
that is what I am going to do with the 318 when I get the cam in there. the Valvoline I think it is 15-20 racing oil with ZDDP in it already. expensive as hell though
