How many kilometers does it take to do a major maintenance?
2 Answers
Vehicles should undergo a major maintenance every three years or 60,000 kilometers. The main contents of a major car maintenance are as follows: Oil change: Changing the oil is a must-do item for major maintenance. Engine oil lubricates and reduces wear, assists in cooling, seals against leaks, prevents rust and corrosion, and provides shock absorption. Oil filter replacement: Replacing the oil filter is done simultaneously with the oil change. The oil filter removes debris, gum, and moisture from the oil, delivering clean oil to the lubrication points. Air filter replacement: The air filter blocks dust and particles inhaled by the engine during the intake process. If the filter is not cleaned for a long time, dust can enter the engine, causing abnormal wear on the cylinder walls. Cabin air filter replacement: If the cabin air filter is not cleaned or replaced for a long time, the car's air conditioning system becomes contaminated, reducing the performance of the cooling system and affecting the physical safety of passengers.
After driving for so many years, I believe the frequency of major maintenance really depends on the car's condition and how it's driven. Generally, a thorough inspection is needed every 20,000 to 30,000 kilometers. Don't underestimate this—it's not just about changing the oil. It includes checking critical components like the braking system, transmission fluid, coolant, and tires. For example, my car is a family sedan, and I make sure to take it in for a full check-up every 25,000 kilometers. This helps catch minor issues early, such as aging spark plugs or belt wear. If you frequently drive on highways or rough roads, where wear is faster, 20,000 kilometers is more appropriate. For smooth driving, you might stretch it to 30,000. Proper maintenance extends the car's lifespan and saves money on major repairs. Safe driving is the top priority—keep a log after each service to avoid regrets when the car breaks down midway. That’s just too much hassle.