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Penn vs Valvoline test results..Ed Wright
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01-19-2019, 08:49 PM
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TOSTO RACING
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Re: Penn vs Valvoline test results..Ed Wright
So 5-8 hp from 10w30 to no oil ! Is it really worth any hp, from 10w30 to 0w5 LOL .we all do it ,but.......
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Last edited by TOSTO RACING; 01-19-2019 at
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