Filtration: The oil filter removes impurities from the engine oil. As the oil circulates through the engine, it picks up contaminants like dirt, metal particles, and carbon deposits. The filter traps these impurities, ensuring that only clean oil reaches critical engine components.
Protection: By keeping the oil clean, the filter safeguards vital engine parts such as bearings, pistons, and camshafts. Clean oil reduces friction, prevents premature wear, and maintains optimal performance.
Water Separation: Some oil filters also have a water separation feature. Water can enter the oil due to condensation or leaks. The filter separates any water present, preventing it from mixing with the oil and causing corrosion or engine damage.
Anti-Drainback Valve: Many oil filters include an anti-drainback valve.