Quote:
Originally Posted by 9krpmrx8
Right so BMW is recommending 15000+ mile OCI's under certain conditions. Crazy.
|
Nothing crazy about a premium blended motor oil having a high mileage service interval based on low stress conditions. Lots of myths about oil, how long it can last, how it can magically break down yada yada yada.
General recommendations cover many use cases in one statement, but the truth is most use cases can go a long time, a few high stress use cases shorter intervals. Efthreeoh has lots of supporting data in such a low stress use case.
All without UOA reports for the most part IIRC, though plenty of us oil geeks have done the UOA analysis for years and come up with tons of data showing the motor oil maintaining solid properties to continue using (grade, TBN, no dilution).
- b