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Ryan5034 · 11-26-2019, 04:35 PM

What is MMO? Some solvent to clean the top of the piston? If so how do you know it didn't leak down and contaminate the engine oil? Or change that too?

11-26-2019, 04:35 PM	#5
Ryan5034 First Lieutenant 83 Rep 360 Posts Drives: 2019 X5 50i Join Date: Jun 2016 Location: Fargo, ND iTrader: (1) Garage List 2019 BMW X5 xdrive50 [0.00] [0.00] 2011 BMW X5 xdrive 50 [0.00] 1964 Chevrolet Bel-Air [0.00]	What is MMO? Some solvent to clean the top of the piston? If so how do you know it didn't leak down and contaminate the engine oil? Or change that too?
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