Originally Posted by Rob
The S54 uses 10W-60, not 10W-30. I have yet to see any bearing issues in the service bulletins with the S54 either.
I am not sure about the oil.. i thought i was correct, maybe not.. but even though the bearing failure problem my not be stated in an official bmw bulletin, i think we all know something is up when there are so many similar failures.
I guess the point i am stressing is that maybe BMW does not know best in this case, they recommend 15k mile oil changes and that is without filter changes, which we both agree are necessary for the oil to last that long and do so in a clean manner.
Just so you know the collection tank/analysis deal is meant for trash trucks, rigs, boats, etc, that see huge mileage and take large amounts of oil, it is meant for 'fleets' as clapton said, and is not really practical or needed for people like you and me..
Synthetics have also been around for a lot longer than 5 years :P