Review on Efficient Oil Extractor: Stens 051-703 - Simplify Oil Changes and Maintenance by William Gildea

As I said in the title, the device does the job just fine. I also bought a steel canister version with a handle that sticks up and looks like a football pump. The ergonomics of this design are excellent. It is much more convenient to store and does not have as many small parts as a steel container. As others have experienced, with fewer than the full number of pumps they recommended, the pen bulb came loose in my hand. It must be my superhuman strength. The recommendation is to just step back in a more elegant way. I suspect a little superglue would fix that, but having other people's grips loosen during use is kind of a design flaw. Apparently I'm not the only one. As I said, the actual function of the product is fantastic and as long as the superglue holds I will be a very happy backpacker. If the handle hadn't come loose on my first oil change I probably would have given it 5 stars. Plugging into the dipstick is a much better method of draining engine oil from the drain plug. Within an hour or so I changed the oil in my sailboat diesel and generator with very little mess. Happy oil change everyone!