Thanks for the props guys, hope it helps.

Piston, this isn't an exact science. Do two oil changes, then keep an eye on it. If it looks like it could use another one, great, but do two hot changes and see how it goes first.

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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