Interesting, someone on the M5 forum mentioned this feature was available. When I change my oil last week I did not notice that my cap had the plug.
Clarifies that a cap with a plug is a special part.
So when I change my oil, I tried a different method and it was a lot less messier. In the past I simply unscrew the filter right away, an oil splattered everywhere. This time around, I just unscrewed enough to allow the oil to trickle out. It takes longer and it does get the housing dirty, but it avoided the mess and the splatter.
I think this filter cap with a plug is still a bit messy. You still have to clean the cap.
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