[cyam]

Boy I wouldn't run a 0w30 or lighter oil in these cars unless it's sub-zero all year round.

I'm in Australia and BMW state 5w30. That's the lighest oil I'd use. The only reason BMW states a 0w20 or 0w30 oil in some countries is for emissions, but it ain't doing your engine any favors.

I'm running MHD "Stage 2" and have a dp, and colder plugs. So nothing wild at all. I continue to run 5w30 LL01 oil which is factory spec for this car here.

I have a 2020 M340iX.