In the complex mechanical structure of a car, the engine is undoubtedly the beating heart, providing a continuous source of power for the entire vehicle's operation. Inside this heart, the oil filter (also known as the oil filter) plays a crucial role, like a loyal guardian silently guarding the cleanliness and efficient operation of the engine. This article will take you to a deeper understanding of the working principle, importance, and key points of daily maintenance and replacement of oil filters.