
The maintenance required for a car at 30,000 kilometers includes: 1. Changing the engine oil and oil filter; 2. Inspecting the air filter and cabin air filter; 3. Checking the coolant and spark plugs to determine if replacement is needed; 4. Performing a comprehensive inspection of the entire vehicle, with timely replenishment and cleaning. Changing the engine oil and oil filter is a mandatory item for 30,000-kilometer maintenance, as the shelf life of engine oil is significantly reduced under the harsh conditions of high temperature and high pressure inside the engine, leading to a substantial decline in performance. Over time, it fails to provide adequate protection for the engine. Car maintenance, also known as car servicing, refers to the preventive work of regularly inspecting, cleaning, replenishing, lubricating, adjusting, or replacing certain parts of the vehicle.

When the car reaches 30,000 kilometers, I follow the manual for a major service. Changing the engine oil and filter is fundamental to protect the engine from wear; tire inspection and rotation are crucial to ensure even wear and safety; the brake system must be thoroughly checked, replacing pads and discs if they're too thin; the air filter might be clogged, affecting engine breathing and fuel consumption; other fluids like coolant and brake fluid should also be checked for leaks or aging. I also make it a habit to have the technician inspect the spark plugs and suspension to prevent issues while driving. Don’t forget to test the wipers and lights—these small details make the journey smoother. Regular maintenance saves money and hassle, preventing breakdowns, and I always personally follow up on the service records.

At the 30,000 km service, I'll keep a close eye on both my wallet and performance. The top priority is changing the engine oil and filter, otherwise the engine will consume more fuel and have a shorter lifespan; tire rotation or balancing extends tire life, saving me from premature replacement; brake pad wear inspection is absolutely essential as it concerns braking safety; replace air filters and cabin air filters when needed to keep the interior air fresh. Other items like fluid checks and electrical system inspections can be optional, saving money by only doing what's necessary. I recommend finding a reliable auto repair shop that's cheaper than dealerships, but never neglect the core components. Proper maintenance will keep the car running longer and save unnecessary expenses.

When my car reaches 30,000 kilometers, I focus on key maintenance items: change the oil filter to protect the engine; inspect the brakes to ensure safety; rotate the tires to prevent uneven wear; replace the air filter to avoid clogged airflow. Other checks can follow the manual—no need to overspend on non-essentials. Regular maintenance keeps the car durable and fuel-efficient.


