But is there ever a benefit, considering it's a 2011 vehicle? I suppose if available full SAPS "recommended for LL-01" continue to become more and more limited, I may have no option but low SAPS "recommended for LL-04" oils.
I haven't seen this linked here before:
This is the 2/2019 edition of " Technically suitable engine oils for petrol engines " from BMW themselves. For N55 it still states LL-01 and LL-01FE everywhere, LL-04 and LL-04FE in EU only, regardless of US ULSG. If I had a B58 with PPF that would be another story altogether.
The major benefit is fewer intake valve deposits, and extended cat life. I am not fully up to speed on how much either is a problem on the N55.