This high volume oil pump creates pressure and volume which pushes the oil to circulate to the entire combustion engine keeping every component lubricated for better performance. This high volume oil pump works well with higher PSI, pumps more oil through the engine, corrects and improves performance on bearings with large clearances. This provides 18% higher volume over the stock oil pump. Over time, the oil pump of your vehicle may start to wear down and would lack oil pressure due to long time of usage. If you start hearing scraping or sharp noises while the vehicle is running, CEL or "Check Oil Pressure" light is showing, the engine is overheating often then you may have a problem with the oil circulation of your vehicle's engine.