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enkeivette · 03-15-2011, 12:02 PM

I wouldn't run a 20 weight if it was meant for a 30 weight. The second number denotes the thickness at operating temp. So your oil is thinner, giving less protection on your bearings.

03-15-2011, 12:02 PM	#11
enkeivette Super Moderator Join Date: Dec 2007 Posts: 6,850 Tweet	I wouldn't run a 20 weight if it was meant for a 30 weight. The second number denotes the thickness at operating temp. So your oil is thinner, giving less protection on your bearings. __________________ I <3 forced induction.