What maintenance is needed for a car at 30,000 kilometers?
2 Answers
At 30,000 kilometers, car maintenance requires changing the engine oil, replacing the oil filter, replacing the air filter, replacing the cabin air filter, cleaning the throttle body, replacing the brake fluid, replacing the coolant, replacing the spark plugs, and changing the brake fluid. Generally, for the first maintenance of a new car, only the engine oil and oil filter need to be replaced, followed by some routine inspections. Changing the engine oil and oil filter is a mandatory task because the oil's shelf life is significantly shortened under the harsh conditions of high temperature and high pressure inside the engine, leading to a substantial decrease in performance. Over time, the oil can no longer protect the engine effectively. The oil filter is used to prevent impurities from mixing with the oil, which can cause oxidation, leading to the formation of sludge and clogging the oil passages.
30,000 kilometers marks the youthful maintenance milestone for a car, focusing on preventive care. I typically perform a basic triple-filter replacement: oil filter, air filter, and cabin air filter—purchasing these parts online saves about 300 yuan. Then prioritize checking brake pad thickness; replace if below 3mm. Inspect the driveshaft boots for cracks in the drivetrain, and perform tire balancing to prevent misalignment. For fluids, brake fluid moisture content is mandatory—replace if exceeding 3%. Clean or replace spark plugs as needed since they impact fuel efficiency. Finally, don't skip using a borescope to check engine carbon buildup—early treatment beats costly overhauls.
