People keep warm in winter, seldom open windows and well ventilated dump trucks, and thus get a lot of bacteria in the corner, the warmth of spring just provides a breeding ground for bacteria, so spring will sterilize and dust in the heart of the work, so that the car remains dry and clean. In spring, more rain, including acid rain, has a corrosive effect on car paint, which can cause damage over a long period of time. If the scratches on the surface of trailers are more troublesome, they are not the protection of paint, and the corrosion will be direct. We can paint and wax the trailers, which can be avoided if conditions permit. Because of the principle of thermal expansion and cold contraction, the tire pressure will decrease in winter, so adjusting the tire pressure in time (usually increasing the tire pressure) or lack of tire pressure can not only increase the fuel consumption of trailers, but also accelerate the abnormal wear and tear of Trailer tires, which is not conducive to safe driving. If economic conditions permit, you can buy tires according to your own preferences. If you want to pursue quiet and comfortable, Goodyear's Royal Second Generation is a very good choice. The Second Generation is a special luxury car for the Royal, quiet and comfortable, is a rain tire with excellent braking performance. The innovative design of tread and bond, advanced damping matrix and silicon material formula make the driver experience quiet and comfortable. After several tires, they get good results in the test. In cold winter, air-conditioning and more frequent use lead to air-conditioning filter adsorbing a large number of dust particles. It is recommended to clean in spring, otherwise blocking filter can prevent and reduce air entering evaporation tank, so that air-conditioning can not play a normal role.