Originally Posted by bshillam
I don't know how these work but I am interested in hearing what other members say as I'd like something to this tune too. Looks easy and I like that it is self contained.
Use a gear pump
for longer life. You can provide your own bucket and directional switch.
I drain the old oil into 5 gallon buckets then reverse the pump direction to refill from a new bucket. The empty bucket then becomes the dirty oil storage container for the next oil change.
If you plumb it in permanently you don't have to change anything except the bucket.