I run one oil only in the wifes x5, GC 0w-30. GC stands for German Castrol. How do you know? It will say made in Germany on the back. Go to bobstheoilguy and read all about it. Love this stuff, harder to find. Autozone carries it around here. My brothers parts place in Shoreline WA also sells it. And he carries the Mann(oem) HU925/4X for the 3.0 in stock....
j

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Nobody... nobody trusts anybody now, and we're all very tired... there's nothing more I can do, just wait... RJ MacReady, helicopter pilot, US outpost #31.