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Model A Ron · 03-26-2021, 07:33 PM

I have been using Marvel Mystery oil in my gas for years but I never used it in the crankcase. On the bottle is states replace up to 20% of oil with MMO.

Has anyone been using Mystery Oil in the crankcase?

Ron

03-26-2021, 07:33 PM	#1
Model A Ron Senior Member Join Date: Feb 2021 Location: Troutman, NC Posts: 717	Marvel Mystery Oil in Crankcase I have been using Marvel Mystery oil in my gas for years but I never used it in the crankcase. On the bottle is states replace up to 20% of oil with MMO. Has anyone been using Mystery Oil in the crankcase? Ron