The car has changed our lives. Although it has brought us great convenience, it has also increased the burden of our daily lives, because for most people, the cost of driving is too high. Excluding vehicle tax and auto insurance, vehicles are machines and require regular maintenance. Here, Xiaoya tells you that apart from the regular maintenance of the three oil filters (air, air conditioner and machine filter) and the regular maintenance of the prescribed mileage, these four items are really unnecessary! Don't be fooled by the 4S shop.