Thread: Too old for sythentecic oil?
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Old 12-06-2010, 03:41 AM   #16
So.Cal.Super
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Re: Too old for sythentecic oil?
Quote:
Originally Posted by 1969stepside View Post
valvoline vr1 20w50 is still high zink till the end of next year

There lowering the zinc?

Damn EPA I bet
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