Drain 3 quarts out. Run it for 30 seconds. Check the dipstick. Any foaming, drain it all out. If no foaming, check the level and top off 1 quart at a time. Car holds approx 8 quarts. Dipstick shows the top 2 or 3 only. Nothing on the dipstick doesn't mean bone dry.

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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