What maintenance does a car need at 30,000 kilometers?

[LaAxel]

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.