Why Do We Change Engine Oil Every 3-5000 Miles? Engine oil does not wear out after 3-5,000 miles – it can actually be used much longer. The problem is that conventional oil filters are not efficient at removing particles below 25 microns in size. Society of Automotive Engineers (SAE) studies have concluded that particles between 3-10 microns are most responsible for engine wear because they can get in between the moving parts in the engine, causing friction and abrasion. These particles also accelerate the breakdown of the oil. Over time, engine wear causes a loss of power and fuel efficiency as well as increased maintenance costs. Conventional filters are only effective down to around 25 microns, allowing smaller particles to contaminate the oil and forcing the vehicle owner to change the oil and filter quite frequently. The same SAE studies conclude that improving filtration efficiency to capture particles in the 3-10 micron range allows longer use of the oil and promotes engine longevity and efficiency.

TECHNOLOGY

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