Simple, effective. Inside of it there is a rotor with dual-jet nozzle, simply generated by engine oil pressure provides the driving force. Once the device is open, through the oil sent to the rotor within the pump tank, oil along the lower part of the dial after the full rotor nozzle spray, then drive the rotor spinning. Its speed can reach more than 4000-6000r.p.m, which produced more than 2000 times times the strength of gravity, by centrifugal force principle, directly driven separating impurities from the oil. Hard and sharp metal abrasion material and vacuum oil filter parts wear out or make residue deposits of oil deterioration, even if it is the size of a 1 µ m can also be removed. Separating collected impurities impurities attached to the rotor CAP, simply wash on a regular basis. In addition, due to the large proportion of water than oil, under the action of centrifugal force, rotor of water separated from the oil in the oil collecting tray, then you can simply clearance in cleaning. Filtered oil by gravity flow directly back into the fuel tank.