
09-21-2013, 08:02 PM
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CC Member
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Join Date: Jun 2005
Cobra Make, Engine:
Posts: 3,077
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Not Ranked
I did a lot of useless testing with oil viscosity. Bottom line for 10wt jump I gained 5 psi hot at idle. All were the same at wot. 10w30vs10w40vs20w50. I ended up with 10w30 per builder. In the end I want the oil flowing through the components vs over. It was really transparent on the rocker arms with 20w50 vs 10w30. The 20w50 just overflowed where the 10w30 went through.
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