2016 BMW 528i Xdrive. B20/N20 motor. Purchased and installed Ravenol 0w30 FES at 101,000 miles. I had been using dealer formula/bulk since 28K miles with no certainty that I was getting the "Correct Spec" for the B motor. They always added engine oil additive from Valvoline each change despite the owners manual sayg this is forbidden. Sometimes they put in LL-01 sometimes it was LL-17FE. recently broached the subject with dealer staff up to the GM and felt that the explanations for the variabilty was unacceptable. Poor controls internally and not a great understanding of the true spec for the B/N motor--0w-30. No grade was ever listed on the work order.
Found another dealer with similiar distance and they would permit me to provide my oil. First my first service with them last month I used the Ravenol 0W-30 FES. I did approve a 15 minute BG motor oil/engine flush. I did not allow them to add the BG engine oil additive just the Ravenol oil.
I want to stay with Ravenol so my question is should I be only using the SSO formulation. My choice is the 0w-30 weight. My interval is approx 9,000 miles with 95% highway at full speeds. The car is stored inside when not driven. No UOA for perspective.
SSO vs. FES Let's go gents.
Found another dealer with similiar distance and they would permit me to provide my oil. First my first service with them last month I used the Ravenol 0W-30 FES. I did approve a 15 minute BG motor oil/engine flush. I did not allow them to add the BG engine oil additive just the Ravenol oil.
I want to stay with Ravenol so my question is should I be only using the SSO formulation. My choice is the 0w-30 weight. My interval is approx 9,000 miles with 95% highway at full speeds. The car is stored inside when not driven. No UOA for perspective.
SSO vs. FES Let's go gents.
