Some does. I was also changing my oil and filter, so I had mine drained anyway. I believe it is on the clean side of the oil filter, so the anti-drainback valve in the filter may normally have more oil trapped than I saw. Even so, it should only be what is trapped in the oil drillings in the engine.
Give the area a good cleaning before you take it apart. You don't want a piece of dirt to end up in the oil drillings.
Give the area a good cleaning before you take it apart. You don't want a piece of dirt to end up in the oil drillings.