Flushing the old oil from engine and outdrive
 

I'm going to put some fresh oil in my 496 and Bravo.
Not knowing exactly what the previous owner had put in them, I'd like to flush as much as possible the old oils before putting in the new ones.
Other than warming both the engine and the drive before emptying them, is there any trick I should be aware of, to effectively get rid of the old stuff?
Thanks in advance!

Drain the engine/outdrive well and install you new oil.

Run it and don't worry, everything will become one in short order, enjoy.

Ken