Daily tire maintenance should emphasize that the correct air pressure should be maintained when traveling. Tire sidewalls have a maximum pressure value provided by the car manufacturer. At least once a month, the pressure of all tires (including spare tires) under cooling is checked. However, inspection alone is not enough. If you find that the air pressure is reduced too quickly, you must find out the reasons and avoid leaving hidden dangers. At some point, you are caught off guard. Stapling, cutting, rubber aging of the valve, cracking may be the culprit. If it is a new car, it is necessary to check whether the rim of the rim is in perfect contact with the tire, whether it has been leak tested and leak tested. After finding the reasons, you can find an experienced dealer or a large tire shop and ask if it is worth fixing because the behavior such as nailing will cause the internal structure of the tire to be damaged and it is not worth continuing to use. In any case, do not exceed the reasonable speed of driving conditions and legal restrictions. If you encounter obstacles such as stones or potholes in front of you, avoid or slow passage. Because even if the inflation pressure is correct, at high speeds, the tire is more likely to be damaged if it encounters road obstacles than at low speeds. The radial tire tread has a steel belt layer, and the tire edge is not covered with a wire layer. When the vehicle runs at a high speed, the tire hits a pit and other external foreign objects, causing the tire to have a severe squeeze between the impact object and the rim flange. Deformation can cause yarn breakage in the cord fabric. The air inside the tire is lifted up from the broken yarn to form a bulge. Continuing to use such a tire will result in more and more broken yarns and eventually a puncture. Always check the condition of the tires, including any bulges, cracks, cuts, pins, and abnormal tire wear. Some new cars did not take long to buy, the tires on both sides of the car wear more, wear less, or shoulder wear faster than the rest of the tread. This is caused by poor tire positioning. Four-wheel positioning must be considered. Even if the vehicle travels less than 8,000 kilometers, tires costing several hundred dollars can easily be eaten. Do not simply change the tires, the condition of the vehicle itself will not change, and there will be problems with changing the new tires. It is just as insignificant as if the foot had a problem. If the tire is excessively shaken, the wheel may be unbalanced. This will not only shorten the life of the tire, but also affect the handling of the vehicle and may cause danger. Tire wear to wear indicator, should stop using. There is a wear indicator mark at 1.6mm left in the tread groove. Wear to this mark must be replaced. It is dangerous to use tires that exceed the mold wear indicator, especially when driving in wetlands. Because the pattern is flattened, the drainage performance of the tire is greatly reduced, and the tire and the water surface basically form a water mill state, which prevents the tire from contacting the ground and greatly reduces the grip, resulting in potential safety hazards. The spare tire should be kept away from sunlight, oil, acids, and hydrocarbons, which can erode the tire. All tires should be stored in a cool, dry and dark room to prevent the accumulation of moisture in the tires. Due to the pressurization, the liquid may enter the carcass layer through the inner airtight layer of the tire, which may cause sudden damage to the tire. When buying tires, how the tire storage environment, it can also be used as an aspect of the inspection of the tire shop.