How much oil actually comes out of the bottom of the engine sump when the plug is removed? I got the filter changed. And drained the oil from the recovery tank by removing the rubber hose at the engine (very slow). But I remembered the Allen sump plug after I had finished running in the fresh oil. )-: How bad did I screw up?
2016 M3W
Typically very little on dry sump engines as the scavenge side of pump has to have a much greater flow than pressure side. This assumes no wet sumping which can happen over time with a stationary engine.
In answer to what you should do now assuming engine has been run, I would just leave it as plenty of fresh oil plus a filter change.
