2010-07-29 17:39:53 +0000
Well there's probably a reason for the high marker...
Unfortunately draining a small amount of oil is going to be a bit more of a headache than adding some.
Place a container to catch the oil under the oil pan and loosen the bolt a bit with a tool, and then use your hands. You should be able to loosen it enough to start leaking oil, yet without taking it off completely. Drain a bit and tighten, then clean up.
However, this method will result in small amounts of oil getting trapped in the bolt's thread - probably not a great thing.
Best thing would be to completely drain the oil into a clean container, clean everything up, tighten the drain bolt, re-fill with the same oil.

