
Generally, a vehicle needs a major after running 30,000 kilometers, which includes replacing components such as engine oil and oil filter, air filter, fuel filter, power steering fluid, and spark plugs. Below are the specific details of the maintenance: 1. Lubrication system: The car should be cleaned and maintained every 5,000km-10,000km. 2. Fuel system: The car should be cleaned and maintained every 10,000km-15,000km, or when you notice engine stuttering, sluggishness, poor acceleration, black smoke, lack of power, or increased fuel consumption. 3. Cooling system: The car should be cleaned and maintained once during the seasonal transition between winter and summer, or every 6 to 8 months under normal driving conditions, or when encountering issues like overheating, water leakage, or boiling. 4. Transmission: The car should be cleaned and maintained every 20,000km-25,000km, or when experiencing transmission slippage, high water temperature, delayed shifting, or system leakage.









I drive a Civic, and the manual recommends a major service every 30,000 kilometers, which includes replacing the oil filter, checking brake pads and tire wear. Since I mainly commute in the city with heavy traffic, the engine often operates under high load, so I usually go to the dealership for inspection every 25,000 kilometers to prevent small issues from becoming big problems. Remember, a major service isn't just about changing the oil; you also need to check the transmission system, air conditioning refrigerant, and other details. A friend of mine almost had an accident due to brake failure after skipping a service. My advice is to adjust the schedule based on road conditions: you can wait until 30,000 kilometers if you drive mostly on highways, but do it earlier for muddy roads. Safety first—don't skimp on maintenance costs.

As a car owner, I've tried various vehicles. Japanese cars require major at 30,000 km, while German cars like Volkswagen recommend it at 15,000 km - quite a significant difference. I often drive long distances, but the mountainous roads are rough, so I perform comprehensive maintenance every 18,000 km, checking the suspension, power steering fluid, and cooling system to prevent sudden breakdowns. Last time I neglected this and drove to 22,000 km, resulting in engine overheating that cost over 10,000 yuan to repair - a painful lesson. It's best to combine the manual with actual driving conditions: frequent city starts accelerate wear, requiring shorter intervals; while highway driving with better fuel efficiency can allow slight extensions. The key is not to rigidly follow fixed schedules.

I've been driving an old sedan for over a decade, and the frequency of major depends on the vehicle model and usage. For new cars like the Toyota Camry, the manual recommends a major service every 20,000 kilometers, including comprehensive filter replacements and electrical system checks. I'm accustomed to city driving and prefer inspections every 12,000 kilometers to prevent carbon buildup issues. Major maintenance covers much more - it includes battery testing and brake fluid checks, so don't just focus on mileage. Environmental factors matter too: driving in snowy winter conditions requires earlier antifreeze system maintenance. Delaying comes at a high cost - my neighbor's car engine seized and became scrap due to overdue maintenance.

From a perspective, the mileage for major servicing varies by individual. Most manufacturers like Ford recommend intervals of 15,000 to 20,000 kilometers, covering transmission fluid changes and suspension diagnostics. However, actual needs depend on driving habits: off-road vehicles require comprehensive checks every 10,000 km after rough terrain use, while city commuter cars can stretch to 25,000 km. Seasonal changes matter too – checking AC refrigerant before hot weather is crucial. A common mistake is changing only engine oil while neglecting critical components; I've witnessed engine failure cases. Regular maintenance extends vehicle lifespan and saves money and hassle.

I've been driving for half my life and have extensive experience in maintaining family vehicles. Generally, a major service for a new car is recommended every 20,000 kilometers, but for models, it can be extended to 30,000 kilometers, while luxury brands like Mercedes-Benz suggest servicing at 16,000 kilometers. My SUV often carries heavy loads, so I conduct a comprehensive inspection every 18,000 kilometers, including tire balancing and electrical system checks. Driving habits are crucial: frequent stop-and-go in congested traffic warrants earlier servicing; delaying slightly on long, smooth drives is acceptable. Don't cut corners to save money—regular maintenance prevents accidents. My child's car once experienced brake failure due to neglected maintenance. Always refer to the manual for the most reliable guidance.


