In general, the normal life of tires is 4 to 5 years. After 5 years, even if the tread wear is very small, it is best to replace it, because the tread rubber will age and produce many small cracks. These cracks are what cause the tire to burst. Due to different rubber formula, vehicle environment and driving habits, different vehicle tires have different service life. So, private car owners usually drive to pay more attention to the signs of tire aging, such as tread aging is mostly from the edge of the tire or tire shoulder and other parts began to appear, long-term sun and rain will make the rubber surface appear into a circle of small cracks. Crack shows that the bearing capacity and quality of the tire have begun to decline, it is best to replace in time.

In addition to aging, tires wear out naturally. Regular manufacturers of tires before the factory will be marked on one side of the tire wear limit. For the tires without wear signs, the owner can use calipers or special tire pattern ruler for measurement, the general tire groove depth is less than 1.6 mm, its drainage and resistance to tie will be greatly reduced, should not continue to use. In addition, if a tire has been repaired three or four times, it is best to replace it with a non-driving wheel or rear wheel to reduce the risk of puncture.

Of course, the life of a tire depends on whether it is used correctly or not. First of all, to ensure that the tire is always in the normal tire pressure, too low or too high tire pressure will give driving safety buried hidden trouble. A word of caution: don't believe what your eyes see, because most cars today are equipped with tubeless low-pressure radial tires, which sometimes feel a little flat from the outside, but it doesn't mean that the air pressure is low. Using a professional tire pressure instrument is a reliable way to measure tire pressure. In addition, check tire pressure must be in the cold tire state, that is, after the car stops for at least 3 hours.