How Many Kilometers Should a Car Undergo a Major Maintenance Service?

[JasmineLynn]

Generally, a car should undergo a major maintenance service every 20,000 to 30,000 kilometers. The major maintenance items include: 1. Engine oil replacement: Engine oil lubricates and reduces friction in the engine, assists in cooling, prevents rust and corrosion, and acts as a shock absorber; 2. Oil filter replacement: The oil filter removes debris, gum, and moisture from the oil, delivering clean oil to various lubrication points. Over time, it can become clogged; 3. Air filter replacement: The air filter prevents dust and particles from entering the engine during the intake process. If the filter is not cleaned regularly, it can lead to dust entering the engine, causing abnormal wear on the cylinder walls; 4. Cabin air filter replacement: If the cabin air filter is not cleaned or replaced for a long time, it can not only contaminate the car's air conditioning system and reduce cooling performance but also affect the health and safety of the passengers.