Tilt the engine to the trailer
position, rotate the motor until the drain plug is facing down, remove
drain plug.

That is a very important step. My engine was "making oil" for over a year
before the second dealer I went to told me this is a known problem. Oil hangs
up in the pistons and other nooks and crannies in the motor. If you tilt it up
and let the engine drain, then tilt it down all the oil comes out and you can
get the 3 quarts in without overfilling.