The oil filter aid in removing contaminants from the car engine’s oil that can buildup overtime as the oil cleanses the engine.
The importance of clean engine oil
clean engine oil is very important because if the oil were left unfiltered for a long period of time, it could get filled with tiny, hard particles that can destroy surfaces in your engine. This can result in the wear and destruction of the oil pump’s machine components and damage the bearing unit in the engine.
continue reading...http://www.automobileglobe.com/functions-of-the-oil-filters/