
Car maintenance at 30,000 kilometers is a routine service that includes the following items: 1. Engine oil and oil filter replacement are essential items, as these two components typically need to be replaced during each maintenance service. 2. Inspect the air filter and cabin air filter to determine if they can continue to be used after cleaning. If cleaning doesn't restore their functionality, replacement will be necessary. 3. Check the coolant level to see if it has decreased. Inspect the spark plugs to determine if replacement is required. 4. Conduct a comprehensive vehicle inspection, performing timely replenishment and cleaning as needed.

As an experienced driver, sharing the experience of 30,000-kilometer maintenance: Every time I go to the repair shop, I must change the engine oil and oil filter. It's like giving the car a blood transfusion, removing impurities and extending the engine's life, which is especially important because high-speed driving tends to accumulate oil sludge. Next, replace the air filter to prevent dust from entering the engine and improve combustion efficiency. Checking the brake pad thickness is also crucial, as excessive wear can affect braking safety. For tires, check if the air pressure is balanced, and the wear condition determines handling stability—rotate the tires to ensure even wear. The cabin air filter must be replaced with a new one to keep the air inside the car fresh, especially during hot seasons. Also, check various fluids, such as brake fluid and coolant levels, to avoid system overheating or fluid shortage failures. Finally, inspect the chassis and suspension for any abnormalities. These basic maintenance steps don’t cost much but ensure safe driving for years. After maintenance, my car accelerates much smoother, and addressing small issues early saves money and hassle.

When chatting with friends about maintenance, there are a few things to do at 30,000 kilometers: I usually start by changing the oil and oil filter to keep the engine running cleanly; replace the air filter to avoid restricted airflow affecting fuel consumption; carefully check the brake pad thickness—replace them if they're too thin to prevent dangerous brake failure; adjust tire pressure and check wear balance for better grip; replace the cabin air filter to eliminate odors; and check fluid levels, including brake fluid and coolant, to prevent accidents. These maintenance tasks aren't complicated but are crucial to ensure smooth driving and avoid sudden breakdowns. After each service, the car feels noticeably more responsive when starting.

My 30,000 km maintenance checklist is simple yet effective: changing the engine oil and oil filter is fundamental to keeping the engine healthy; replace the air filter based on dirt accumulation; check brake wear; inspect tire pressure and tread wear; renew the cabin air filter; and ensure all fluid levels are adequate. This routine ensures safe and comfortable daily driving.

From a cost-saving perspective, the 30,000-kilometer maintenance is worth the investment: I insist on changing the engine oil and oil filter to prevent engine failure, usually costing a few hundred yuan; replacing the air filter for a few dozen yuan improves fuel efficiency; early inspection and replacement of brake pads save on major repair costs; tire maintenance is free for optimization; replacing the cabin air filter for under a hundred yuan enhances comfort; checking various fluids to ensure no shortages prevents problems. Overall, spending small amounts avoids significant losses.


