[gargoyal]

Did a little reading because I plan on going synthetic after the 1st oil change. I found this or a similar statement on a bunch of oil companies & quick lube web sites.

"The Magnuson-Moss Warranty Act and general principles of the Federal Trade Commission stipulate that an automaker may not require a motorist to use a particular brand of motor oil and filters unless the automaker provides those oils and filters free of charge to the people whose cars are under warranty to the automaker.

Automakers may require use of products meeting certain performance criteria. For example, North America automakers now require use of motor oils that provide American Petroleum Institute SH Performance. However, any oil providing SH performance may be used."

Unless BMW has a program to give us fee oil and filters we can uses what we want and as often as we want