Review on EWK 6L Vacuum Oil Extractor Pump: Efficient and Convenient Fluid Extractor for Automotive and Marine Oil Changes by Doug Friedman

, as well as several of my neighbors' cars. I couldn't use it on my 2003 Porsche Boxter S or 2009 Porsche Cayman because the vacuum pump inlet tube is too stiff and could go around the bends in the dipstick or filler tubes. I also use it on my lawn mower and pressure washer. It takes about 30 minutes to remove the oil, so I usually vacuum the inside of the car while I wait. I give him about 30 pumps and come back about 10 minutes later and pump again. At first I was skeptical that this system would be able to remove all the oil from the bottom of the sump, so after vacuuming out the old oil I removed the drain plug from several cars and was glad only a few drops of oil had escaped. I got my first after finding out that my Audi service department used the Power Vac system to change the oil in an Audi and had never removed the drain plug. After watching a few YouTube videos I bought the first one and have been using it ever since. I bought the second one for use at our winter home in Florida where we store another car.