2011 R1200GS - only mineral oil allowed, ever?
Today, a BMW Master Mechanic told me that you can never use semi-synthetic or full synthetic oil in a Boxer engine, because, if you do, the engine will leak oil because the synthetic oils will damage the seals, and, you will also have oil consumption\burning problems.
I understand staying away from synthetic oils until the engine is broken in so that the rings will seat properly...but, to say that you can [U]never[/U] use synthetic oils seemed strange...
Any insight or comments would be appreciated.
2011 BMW R1200GS
care to rephrase that, smoke?
re: "Your mechnic is blowing smoke."