The MD-70DP is an engine oil changer run by an air operated double diaphragm pump. This pump is suited to handling liquids that may contain abrasive particles such as metal sludge. This model has an oil drainer and a suction pump and is suitable for waste oil removal. Used especially in the automotive industry the MD-70DP comes supplied with three nozzles, two for regular applications on most automobiles and one for use only on Mercedes Benz, which requires a special method of oil replacement.