Stick with 5W30, but the real issue is that you are checking it incorrectly. Engine has to be at operating temperature, then you have to let the oil drain down into the sump. Otherwise you won't get an accurate reading. See your owner's manual.

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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