I also got the same reccomendation from Lazer on my cam reply quote, and I am running the 15/40 in my diesel ( can't rememeber which brand ) and noticed it contained zinc, don't know if it contains as much as the "for racing only" oils though, and since it seems to be such an issue or, I would use it if I could confirm it, that much less differnt oils on my shelf would be nice!
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