Got the oil changed today by someone else. Dropped the car off, came back, and all looked fine. Drove home just to double check the oil fill/top off it necessary, and I keep pulling the dipstick out, and its about two times as high as the high mark on the stick, and I keep wiping the dipstick/re-checking the oil, and it kept doing that. Then I realized the guy filled the oil too high. Sigh... Then I look down onto the skid plate and see that the guy opened the filter after closing the nut/plate below, spilling oil all over the inside of the engine/plate area. Another sigh...<p>So tomorrow, I'll open it up and clean it. But what do I do about the oil? Can I open the nut and put it back quickly to drain just a little, or do I have to drain the entire thing and re-fill it?