i bought a few of these too ($5-$20)
its a different model but the idea is the same
(mine is low-profile)
i drive the car on ramps
open the valve with a hose going into a container
go do something else while it drains
after thats done I unscrew the filter and put in a new one
detach the valve and pour in 4-5 quarts
probably one of the easiest thing to do on your car besides changing a tire or replacing a wiper
