I'm using "Valvoline Modern Engine Oil" since they have patents and claim to have some chemistry there to keep the valve stems more carbon-free.
Owner reviews for engine oil
Castrol Edge European formula 5W-30. Closest thing to group IV you can easily find in the states.
I run Mannol 5w30 for Japanese brands on my 202k km d16
Works fine but I might change to a slightly thicker one
I use Mobil 1 synthetic blend HIGH MILAGE 5w-30. I think the high milage formula is the best for these old engines.
I switched from the lm to Castrol and it works as intended at a much more affordable cost.
Motul Is the snizz. I put it in my Honda and every German car that comes in for service.
For instance, i use 5w40 she'll helix ultra, and it is thin 5w40 and it has ll01.
I use 5w40 Castro’s European blend in my 06 e60 530xi and it seems like it does the job.
I used Castrol Edge 5w40 last oil change and the engine feels smooth and burns little to no oil.
Right now I have liqui moly 5w-30 in there and it runs fine.
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