Quote:
Originally Posted by prostcfc
cleanflow just use a 0W-20 or 0W-30 oil with the correct BMW cert. Your manual specifically says both weights are fine. I've heard anecdotally that even dealers have used 0W-30, but who knows. Not sure how a dealer would evaluate your oil weight if there was an issue; hell, they could give you a headache for not allowing BMW to change it.
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Again, it is not about weight, but HTHS. That is only thing that matters when it comes to oil viscosity and protection (besides additives).
LL01 and LL04 oils are having minimum HTHS of 3.5. LL01FE, LL12FE, LL14FE and LL17FE are all energe conserving oils with HTHS below 3.49, and in case of LL17FE, below 2.9cp.
That being said, since BMW is always very confusing, but it does allow 0W30 grade without emhpasis on approval (and 0W30 could be LL01FE or LL01 and LL04 as HTHS is what approvals are based on, not grade) I would use this oil:
https://www.amazon.com/Castrol-06244...s%2C135&sr=8-3
Or this oil if one wants something similar in additives to LL17FE:
https://new.motul.com/en-US/products...N%2B+EFE+0W-30
Whatever one does, SHOULD NOT choose API SP ILSAC GF-6 0W30 like Mobil1 0W30 AFE.