What maintenance items are required at 30,000 kilometers?

[IanFitz]

At 30,000 kilometers, the maintenance items for a car include changing the engine oil, oil filter, air filter, fuel filter, throttle cleaning, and a comprehensive inspection of the vehicle. Here are the detailed explanations: 1. For a 30,000-kilometer maintenance, changing the engine oil and oil filter is essential. Due to prolonged engine operation, the engine oil's performance deteriorates significantly under high temperature and pressure conditions, reducing its protective effect on the engine over time. 2. The oil filter prevents impurities generated by the engine from mixing into the oil, which can lead to the formation of sludge and clog the oil passages. Therefore, the oil filter should be replaced along with the engine oil. 3. The air filter should be replaced every 10,000 to 15,000 kilometers, and the fuel filter every 30,000 kilometers. Before reaching 30,000 kilometers, throttle cleaning is not necessary. However, at the 30,000-kilometer maintenance, throttle cleaning is required because carbon deposits can accumulate in the throttle, potentially causing unstable idling.

[McRuth]

As a cautious car owner, I always prioritize safety. At the 30,000-kilometer maintenance, I go to a professional shop for a comprehensive inspection. Key items include an oil change to ensure smooth engine lubrication; the oil filter must also be replaced simultaneously to prevent impurity buildup. The air filter must be renewed to avoid dust clogging that could affect performance. The braking system is a priority—I insist on checking brake pad thickness and brake fluid levels to ensure reliable emergency braking. Tire maintenance cannot be overlooked: check for balanced tire pressure and observe whether wear patterns are normal to prevent blowout risks. Additionally, coolant and transmission fluid need inspection to prevent leaks or aging. I clean or replace the cabin air filter to maintain fresh air. The chassis suspension also gets a visual check to avoid abnormal noises. Regular maintenance extends vehicle lifespan—I recommend strictly following the owner's manual, never cutting corners to save money or effort. Safe driving is what truly matters.