I agree with the points above. There is little value in a modern aluminum engine. Installing one that is the correct size can't hurt, especially if you are in the habit of leaving old tools in the oil pan (per the picture in your first post).

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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
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