Hi,
my 2011 5.0i consumes at least 0.5 quarter oil per 600 miles.
I think its to high.
My mechanic guy sad that it could be clogged/carbon build up on piston ring and recommend to use some carbon cleaner for engine.
To spray cleaner in cylinder - removing spark plug and leave half a day, than flush oil.
Any recommendation ???
What cleaner you recommend ???

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BMW 2011 5.0i (currents)
BMW 2004 4.4i (retired)
BMW 2001 3.0i (retired)