When the tire pressure is higher than the standard value, what impact does it have on the car?

If you often run at high speed, the tire pressure is better than the standard value. For example, if the standard value is 2.3bar, we can push the tire pressure to 2.5bar.

Why do you say that? In fact, a very important function of automobile tires is to reduce vibration. When designing a general automobile, the tire and suspension system have been coordinated and matched, and the tire model and tire pressure have been fixed. However, this kind of coordinated matching has a large safety margin and is suitable for most roads. Generally, the higher the tire pressure, the worse the tire damping function, and the lower the tire pressure, the better the damping function. The road conditions in expressway are very good, and the requirements for tire shock absorption function are not high, so even if the tire pressure is higher, the shock absorption function of the car will not be bad.

In addition, high tire pressure has another advantage: it can reduce the rolling resistance of tires and effectively reduce the fuel consumption of automobiles. This is very beneficial to long-distance driving, which can not only save some gas money, but also extend the cruising range of the car and avoid mileage anxiety.

Many people worry that high tire pressure will lead to a flat tire, but it won't. The standard tire pressure of general tires is 2.3~2.4bar, and the maximum allowable tire pressure is 3.5bar, but the pressure that can make tires burst is as high as 10bar. Therefore, even if the tire pressure is high, driving for a long time will lead to an increase in tire temperature and tire pressure, which will generally increase by about 0.2~0.3bar, far from the puncture pressure. Therefore, a slightly higher tire pressure will not lead to a puncture.

On the contrary, if the tire pressure is too low, the probability of puncture is greater. Statistics show that most of the flat tires are caused by low tire pressure. Because the tire pressure is too low, the tire will keep folding and loosening the tire wall during the rotation, which will lead to the separation of the cord from the rubber, and then lead to a puncture. Therefore ... low tire pressure is far more terrible than high tire pressure. This is also an important reason why I suggest higher tire pressure.