A little bit of oil left in the pan is not an issue, some people (including me) only change the filter every second time (and yes, I use the service indicator for oil changes). I do find the evacuator kind of slow though and I guess it's harder to tell if there happens to be some coolant at the bottom. It is good to get underneath once in a while anyway.

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1988 325is (purchased new) sold
2004 X5 3.0 2005 X3 2.5
2008 X5 3.0 (new to me)