Hi,

I'm going to be changing the oil in the 328i in a couple of weeks. I'm wondering what the best oil for it is? I'm reading conflicting reports on it.

So far from searching I've seen:

0W30
5W30
5W40
10W40

And also 10W60 which seems a bit too viscous, unnecessary and I wont be putting it in.

What oil do you use?

Castrol recommends 5W40 and I think I'll go with that, just want to make sure.

Thanks,