Quote:
Originally Posted by sh55
I believe the F8X cars were developed with Castrol edge professional 0W-30 oil (although the manual says 5W-30 is also ok).
Somewhere on this forum someone posted a pdf with the list of acceptable oil alternatives for the M3/M4, I couldn't find it for you, but I know Mobil 1 was on the list (the post should be a sticky). There are many oils listed and I think the primary requirement is that the oil is LL1 or LL4 certified.
Personally I am running Castrol 0W-30 in my M4 and will be using it for in between oil changes. I was a Mobil 1 guy forever but switched as the S55 motor was developed with Castrol and I'm not leasing my car  |
While the oils are not exactly the same, they are close enough that it won't make a difference to switch, as long as you stay synthetic to synthetic.