Two days ago, a friend called me and said that when the car washes, the maintenance worker told him that the tire had worn out and he needed to replace it immediately. For security issues, friends naturally dare not neglect, quickly went to 4S shop inspection. As a result, after the auto repair specialists have seen the rear tires, they can continue to use them. They do not need to be replaced at all. So what is the life and wear of the tire?

In general, the tire life of normal use is 4 to 5 years. Even if the wear of the tread pattern is very small after 5 years, it is better to replace it. Because the rubber of the tread may age due to the long time, many small cracks are It is the cause of a flat tire.

However, the relevant departments of the country have not yet made special provisions on the shelf life of the tires, because the tire's service life will vary according to the different tire rubber formulas, different car environment and driving habits. Therefore, we need to stay a little more minded when driving, and tire aging is also a sign. For example, parts of the tread that are aging are mostly from the edge of the bead or shoulder, and long-term sun and rain will make the rubber surface appear small cracks in circles. These cracks indicate that the tire's bearing capacity and quality are Has begun to decline, in order to reduce the risk of puncture is best to replace in advance.

In addition to aging, tires are also naturally worn. Therefore, the factory tires are marked with a wear limit on the sidewall before leaving the factory to indicate the real-time wear of the tire. For tyres without signs of wear, we can also measure them with calipers. In general, tyres with a groove depth of less than 1.6 mm can no longer be used, because the drainage performance and resistance to breakage of the tyres will be significantly reduced. In addition, if a tire has been repaired three or four times, we recommend that you change it to a non-drive wheel or a rear wheel to reduce the risk of a flat tire.

Of course, there is a big relationship between the life of the tires and whether they are normally used in peacetime. First of all, we must ensure that the tires are always under normal tire pressure, and tire pressures that are too low or too high can jeopardize the safety of the tires. Need to remind everyone that do not believe the eyes to see, because most of the cars are now equipped with tubeless low pressure radial tires, sometimes from the outside will feel a bit awkward, but does not mean that it will certainly lose gas, professional tire pressure The instrument is the only way to detect the tire pressure. In addition, when the tire pressure is detected, it must be in the cold tire state. If it is a hot tire measurement, it is accurate to subtract 0.3PA from the measured value.