Originally Posted by Jim_in_Calgary
Gatoman, are you active on the BITOG site?
Yes. Mostly on GC & european oils.
I'm getting my 1 year low mileage free oil change on friday so I won't be able to do a UOA.
My current OCI on 2011 535i:
1. 1000 miles - Dump factory fill replace with GC
2. 4000 miles - GC
3. 8200 miles - BMW 5W-30