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JK-M5 · 03-02-2020, 07:23 PM

#your PCV valve could be blocked also.
#worn piston rings.
# clogged oil passages due to dirty oil.when was the oil changed and is the correct amount in it ( Not over filled)

just a few things to check.

is the car tuned

03-02-2020, 07:23 PM	#8
JK-M5 Second Lieutenant 61 Rep 240 Posts Drives: MBB F90 M5 Join Date: Jan 2016 Location: United Kingdon iTrader: (0)	#your PCV valve could be blocked also. #worn piston rings. # clogged oil passages due to dirty oil.when was the oil changed and is the correct amount in it ( Not over filled) just a few things to check. is the car tuned
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