Several quarts remain ... ???

[Schrade]

[FONT=Arial, Arial, Helvetica] From the zr1.net page:

several quarts of oil remain in the cooler and is not removable during a routine oil change. [/FONT]

That right? SEVERAL? As in 'more than 2' quarts?

Will a shop-vac put onto the fill opening pull it to a space where it might drain?