What are the maintenance items for a sedan at 15,000 kilometers?

[DiKeegan]

Sedan maintenance at 15,000 kilometers includes changing the engine oil and engine oil filter. The following are detailed introductions to car maintenance items: 1. Engine oil and oil filter replacement. This mainly targets the lubrication system's maintenance. The primary function of the lubrication system is to effectively lubricate various components of the car engine to prevent excessive wear. The oil filter's function is to remove various impurities from the oil, ensuring the normal operation of the lubrication system. The oil filter should be replaced together with the engine oil during an oil change. Under normal circumstances, a car requires maintenance every 5,000 kilometers. 2. The function of the air filter is to filter the air before it enters the cylinder, removing impurities, dust, sand, and other foreign particles. The cleaning and maintenance of the air filter depend on the usage environment. The gasoline filter is generally replaced after driving 20,000-25,000 kilometers. 3. Spark plugs are consumable parts and should be replaced every 20,000 kilometers. In addition, components such as brake fluid, transmission oil, battery, throttle, fuel injector, and brake pads are all inspection items during routine maintenance, and their maintenance depends on usage conditions.