Quote:
Originally Posted by maupineda
Just realized I crossed my cables, I meant to say phosphorous. For the S54 I want high zn and p
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For me, too much Zn isn't too ideal either as I have all my cats. If any of that Zinc makes it through into combustion, it won't be too good for those cats. I believed that was the main reason that the Castrol formulation scaled back their Zinc content in order to meet the API SN rating. As long as my metal wear are low, I'm fine with those additive package.