What maintenance items are required for a new car at 20,000 kilometers?

2 Answers
Catherine
07/29/25 6:04am
The 20,000-kilometer maintenance is typically the third service for a car and is generally considered a major service. Routine maintenance items for the third service include changing the engine oil, oil filter, air filter, cabin air filter, spark plugs, etc. Some brand manufacturers may add additional maintenance items. Below are the specific details: 1. Changing the engine oil and oil filter is essential. Under the harsh conditions of high temperature and high pressure inside the engine, the shelf life of engine oil is significantly shortened, and its performance deteriorates. Over time, it can no longer protect the engine effectively. The oil filter prevents impurities from mixing into the oil, which could cause oxidation, leading to sludge and clogging the oil passages. The engine oil and oil filter should always be replaced together. 2. Secondly, the air filter also needs replacement by this point. If it wasn't replaced during the 10,000-kilometer maintenance, it must be replaced at the 20,000-kilometer service. The air filter prevents dust and particles from being drawn into the engine during the intake process. If the filter is not cleaned regularly, dust can enter the engine, causing abnormal wear on the cylinder walls. 3. Additionally, if the car uses standard-material spark plugs, they should be prepared for replacement at 20,000 kilometers. Spark plugs directly affect the engine's acceleration performance and fuel efficiency. If you notice a lack of engine power while driving, it's time for maintenance. Different materials of spark plugs have varying lifespans.
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VonAthena
08/12/25 9:34am
As someone who frequently drives new cars to commute, I believe that after reaching 20,000 kilometers, the key maintenance tasks are changing the engine oil and oil filter. This helps protect the engine from carbon buildup and extends its lifespan. The air filter should also be checked—if it's clogged, it needs replacement, otherwise, the car's power will decrease, and fuel consumption will rise. Rotating the tires is equally essential, as even wear saves money and ensures safety. Don’t forget to inspect the brake pads and brake fluid level—they’re crucial for stability, especially on highways. Remember, regular maintenance might cost a little now but saves big trouble later. I learned this the hard way when skipping maintenance led to doubled repair costs. Also, check the coolant level and lights to prevent unexpected issues, ensuring smooth daily commutes. Don’t delay—find a reliable auto repair shop and get it all done in one go.
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