Awesome, thanks! I've been keeping it over full while my valve cover gasket was leaking. I think it still is after some work, oh well.
As to Ragnarok's question about over full:
When you have too much oil in the crankcase, the moving parts are either sitting in it too far and creating drag causing a loss of power, or extra oil is getting kicked up all over the place doing the same thing. And the more you do that at faster speeds in a motor, it's not good for it long term.
This leads me to a question:
Do D motors have windage trays (either stock or aftermarket)? Always a good thing to have to keep the oil from getting kicked up all over. Adds efficiency to the motor.