Can an oil filter still be used after 5 years?

[Beth]

An oil filter can still be used after 5 years. Function of the oil filter: The oil filter can filter out impurities, supply clean oil to the engine, reduce engine friction and wear, and extend the engine's lifespan. Impact of not replacing the oil filter: During engine operation, metal shavings, dust, oxidized carbon deposits and gum-like deposits under high temperatures, water, and other contaminants continuously mix into the lubricating oil. If not replaced regularly, the oil filter may become damaged, preventing the oil from being properly filtered. This allows unfiltered oil to enter the lubrication circuit, carrying contaminants into the friction surfaces of moving parts, accelerating component wear, and reducing the engine's service life.