What are the items for the second maintenance of a new car?

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The second maintenance items for a new car generally include changing the engine oil, replacing the oil filter, replacing the air filter, and replacing the cabin air filter. Here are the detailed introductions: 1. The maintenance of a car mainly involves replacing some wear-prone parts and fluids. There are many wear-prone parts on a car, such as tires, brake pads, brake discs, shock absorbers, wipers, belts, spark plugs, ignition coils, and various filters. The fluids in a car include transmission fluid, engine oil, coolant, brake fluid, and power steering fluid. 2. The most frequently replaced item is the engine oil, which is referred to as the blood of the engine. Engine oil serves the functions of lubrication, cleaning, sealing, and heat dissipation within the engine. Every time the engine oil is changed, the oil filter should be replaced as well. When purchasing an oil filter, it is essential to choose products from reputable brands. Inferior filters have poor filtration effects, and prolonged use can damage the engine. Some cars' oil filters come with a sealing ring, which needs to be replaced every time the filter is changed.