This versatile 3 in 1 Oil Suction/Drainer can be used to change oil on all types of automobiles and trucks: By gravity, with tank on the floor; By gravity with pan raised, with motor vehicles placed on auto lift or over a pit; By suction with probe inserted directly into the engine. A continuous connection to the compressed air line or other energy source is not required (the oil must be hot, 160-175 degrees F