What are the maintenance intervals and items for sedans?
1 Answers
Minor maintenance is typically performed every 5,000 to 10,000 kilometers and mainly includes changing the engine oil and oil filter. Major maintenance is carried out every 20,000 to 40,000 kilometers, involving more components than minor maintenance, such as replacing the engine oil, oil filter, air filter, fuel filter, and other routine maintenance items. 1. Minor Maintenance: (1) Engine oil is the lubricant for engine operation. It plays a crucial role in lubricating, cleaning, cooling, sealing, and reducing wear on the engine. It significantly reduces wear on engine components and extends their service life. (2) The oil filter is the component that filters the engine oil. Engine oil contains a certain amount of gum, impurities, water, and additives. During engine operation, metal shavings from friction between components, impurities from inhaled air, and oil oxides are all filtered by the oil filter. If the oil is not filtered and directly enters the oil circulation system, it will adversely affect the engine's performance and lifespan. 2. Major Maintenance: (1) The air filter ensures that the engine, which requires a large amount of air during operation, receives clean air. Without filtration, dust in the air can accelerate wear on the piston group and cylinder. Larger particles entering between the piston and cylinder can cause severe "cylinder scoring." The air filter's role is to remove dust and particles from the air, ensuring that sufficient, clean air enters the cylinder. (2) The fuel filter provides clean fuel to the engine by filtering out water and impurities from the gasoline. This optimizes engine performance and offers the best protection for the engine.
