To be truly effective an oil filter needs to filter all the oil that goes through the lubrication system and remove these particles. CM depth filtration removes more particles without restricting flow, providing the absolute protection needed. CM Elements can not be cleaned because they work on depth filtration design where particles are caught within millions of tiny passages which run through out the element. This design allows for a much greater flow and the ability to hold far more particles than a conventional surface filter. Under normal operating conditions we recommend a CM filter element should be changed every 10,000 street miles.
Many customers change the element every second oil change.
Under circumstances when large quantities of particles are being caught, like in older engines, engines which have not had regular oil changes, new engines during break-in, or when some oil additives are used, the element may need to be changed sooner. When the normal operating oil pressure has decreased 4 lbs. Unless they are damaged they can last at least 4 filter changes. A flapper valve allows oil to easily enter the filter, while preventing it from draining out once the engine is shut off. The high flow of the CM element can handle more flow than that required by any automotive application, so all the oil can be filtered all the time.