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protovack · 11-20-2019, 12:53 PM

...and the vast majority of that oil would have been combusted. A small amount would have stuck on the valves and intakes. Likely no performance deficit and just needs to be cleaned once in about 10-15 years if you care enough.

11-20-2019, 12:53 PM	#3
protovack Drives: 2019 2LT 2.0T M6 Riverside Blue Join Date: Jan 2018 Location: WA Posts: 847	...and the vast majority of that oil would have been combusted. A small amount would have stuck on the valves and intakes. Likely no performance deficit and just needs to be cleaned once in about 10-15 years if you care enough.