BMW M5: G90 - View Single Post - Valvoline Restore & Protect Oil: cleans upto 100% Deposits to Factory Specs?

Gjg064 · 01-01-2025, 11:15 PM

The real issue is the EGR function the ECU is programmed on the engine to reduce emissions, the carbon builds up above the oil control ring pack so I doubt an oil would have any effect on it.

01-01-2025, 11:15 PM	#26
Gjg064 New Member 2 Rep 5 Posts Drives: BMW Join Date: Jan 2025 Location: USA iTrader: (0)	The real issue is the EGR function the ECU is programmed on the engine to reduce emissions, the carbon builds up above the oil control ring pack so I doubt an oil would have any effect on it.
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