What maintenance is required for a new car that has run over 20,000 kilometers?

[Timothy]

After running 20,000 kilometers, the car requires primary maintenance operations, mainly based on the car's maintenance manual. Basic items generally focus on inspection and tightening, with repairs carried out as needed. Common items include changing the engine oil, oil filter, air conditioning filter, fuel filter, cleaning the air conditioning filter, and some routine inspections. Below are five key points for engine maintenance: 1. Use the appropriate grade of engine oil and change the oil and filter regularly; 2. Frequently maintain the air filter and replace it periodically; 3. Regularly clean the fuel system and replace the fuel filter; 4. Maintain the radiator cooling net periodically; 5. Replace the spark plugs at regular intervals.