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Be careful adding high-performance oils to an engine that is being used as an everyday driver.

We have heard reports that increased zinc levels, which are for extreme heat applications, can destroy the anti-oxidation additives in most motor oils.

So for a racing engine, it makes no difference. If you do a lot of short trips without the engine getting hot, it could be an issue.

As always, do your homework and buy what's right for your personal application.

Ray @ OJ
 

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Sorry to be so critical, but...

What does that mean "API licensed oil". It either meets the API standard, exceeds or fails. Wording like that would indicate they purchase a formulated oil that does meets the standard & then blend it with junk. Once again Where's the independent test lab data?

Personally I'd rather have a bit more polymer coating my meatal surfaces than so much ZnO2's.
 
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