The oil filter, despite being as small as a coffee mug, plays an important role as a life-blood for the engine. Located on the side of the engine block, it cleans out any large impurities in the engine oil that could have otherwise damaged the engine. Dirt, metal shavings and other large particles suspended in engine oil and left unfiltered can especially wear down engine bearings and cause low oil pressure. Over time, this could lead to major engine damage.
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