Re: Penn vs Valvoline test results..Ed Wright
Quote:
Originally Posted by Ron Gusack
I don't like all the moly in it and it's the main reason I got away from VR1 back in the 80's. Tear downs always had a bunch of black slime in the pan and I hated it.
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Pull the pan when the engine is still hot/warm and you won't see that. High zinc oils (over 1,000 ppm) will precipitate additives when the oil is cold. -Al
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Last edited by Alan Nyhus; 01-19-2019 at 08:55 PM.
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