Instruct: Classify a given review as either positive or negative.
Query: Save your money, better to just hooked a drain valve and add a hose for a clean drain

Air was leaking from the top side cover in between the two screws where the suction tube outlet is located. I have tightened tightened the screws/nut and it still leaks air unless i'm clamping on it with my two hands. I tested it out on my brake master cylinder reservoir and it worked fine. After pumping till my arms got tired, I only ended up with about a quart of used oil, which in fact was at operating temperature. I'm sure if there was no leak, I wouldn't have had to pump as much. I ended up just draining from the bottom, which was 100x easier.