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There is definitely some FUD out there about running heavier weight oil than the sticker under the hood calls for(0W-12). The owners manual covers two engines, and lists the required specifications in one table. They confusingly state both LL01FE and the LL22FE++ 0W-12 as approved, but the...

Thanks for your reply. I've been reading on this topic since March and have been lurking for years. I'm not sure I've seen anyone actually share a detailed analysis of the 0w-12 factory oil fill or close some of the other loose ends on the B58TU2 threads and LL22FE threads. A lot of the comments...

We just brought home a 2025 X5 with the B58TU2 and 0W12 in the case. I think I’ve read all of the relevant threads, and I don’t feel comfortable running 0w12 beyond about 1K mile break-in. I purchased LL17 0w-20 based on the 2024 owners manual before we got the car, but in our 2025- the 0W20...