The maintenance of the lubrication system is crucial for ensuring the long-term stable operation of the engine, primarily involving regular oil and filter changes, oil condition inspections, and timely comprehensive maintenance. Engine oil serves multiple functions in the engine, including friction reduction, cooling, cleaning, and rust prevention. It is recommended to replace the oil every 5,000 to 10,000 kilometers or as per the manufacturer's suggested intervals (approximately 5,000 km/6 months for mineral oil, 7,500 km/8 months for semi-synthetic oil, and 10,000-15,000 km/12 months for full synthetic oil), while simultaneously replacing the oil filter to remove impurities. Regularly check the oil level to ensure it remains between the dipstick markings, as both overfilling and underfilling can harm the engine. Additionally, monitor the oil's color and consistency—immediate replacement is required if it appears black, becomes viscous, or emits a gasoline odor. For high-mileage vehicles or those operating under severe conditions (such as high temperatures or dusty environments), maintenance intervals should be reduced. When necessary, perform a thorough cleaning of the lubrication system to eliminate sludge and carbon deposits, preventing accelerated component wear due to oil oxidation. When selecting engine oil, ensure compatibility with the vehicle's specifications; synthetic oils are better suited for modern engines owing to their superior durability. Consistent maintenance not only prolongs the engine's lifespan but also enhances fuel efficiency and performance. Vehicle owners are advised to strictly adhere to the maintenance manual while making practical adjustments based on the actual condition of their vehicle.
