The unit works well, but is not first-quality. I had to purchase additional hose, as the supplied tube won't reach both to the bottom of the dipstick tube AND across the engine bay to the pump on my small BMW E46. I chose 4 ft. of 1/4 in. rubber fuel line, as it fit both the inlet and nylon tubing tightly, though 3 ft. would have sufficed. I did not use the supplied rubber coupling. It does NOT hold a full 7 quarts of oil, so be careful as you might over do it. No more than 6.5 quarts will fit. I didn't mind leaving the half quart in the engine, because I will be changing it more frequently anyway since I have this handy DIY tool!
Steve Shaffer 
