They also spec 5W-40 as an alternative, but you are better off with the 5W-30, it is a better quality oil usually. Extended viscosity additives can diminish other properties of the oil.

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2007 X3 3.0si, 6 MT, Premium, White

Retired:
2008 535i, 6 MT, M Sport, Premium, Space Grey
2003 X5 3.0 Steptronic, Premium, Titanium Silver
2002 325xi 5 MT, Steel Grey
2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue