The 'German Castrol' 0w-30 certainly had a very loyal following, and it was green and made in Germany in the beginning. Now I believe it is no longer green, and made in Belgium, but that might be the newer Castrol 0w-40, but perhaps both.
I'm using M1 0w-30 AFE in my LA318. The 0w-40 was a bit quieter for the first half of the oil change. Both are quieter than the 10w-40HM and the M1 5w-40 TDT I was using before, especially at start up.