Abnormal tire pressure changes are risky, do not deliberately adjust tire pressure in winter

【Owner's home car knowledge】"Looking at the winter car skills, it is said that the tire pressure should not be high or low, otherwise it will affect the grip effect and increase fuel consumption. No wonder I have been feeling that the car has unstable grip recently, and the fuel consumption has increased by nearly two fuels compared to last month. Then , What is the proper tire pressure for driving in winter?" The weather was suddenly cold, and Mr. Zhang, a novice, also began to pay attention to the skills of driving in winter. Tires, of course, are also the most important aspects when driving, so how should you pay attention to tire pressure?

• It is important to pay attention to tire pressure

The tires matched with each car have corresponding tire pressure, and its level directly affects the performance and response of the tire, and affects fuel consumption to a certain extent. Excessive tire pressure will not only increase the risk of tire blowout, but also make the middle part of the tire protrude into the ground, which will significantly reduce the grip of the whole vehicle, and will not be able to provide enough friction during emergency braking. If the tire pressure is too low, the outer edge of both sides of the tire will touch the ground, making it impossible for the entire tread to touch the ground. While increasing the tire wall wear, it will not be able to provide a sufficient grip area, which is as dangerous as driving with high tire pressure. And often wear the thinnest sidewall part will directly lead to premature scrapping of the tire.

• Tire pressure does not need to be deliberately lowered

According to the introduction of the car after-sales staff, for the tire pressure, it is recommended to check the tire pressure with a tire pressure gauge every week when the tire is cold, so as to ensure that the front and rear tire surfaces on each side are completely in contact with the ground to achieve the best grip effect. It can also reduce road vibration, increase driving comfort and save fuel.

Secondly, don't lower the tire pressure intentionally. Some people tend to think that the tire pressure of the wheels in winter should be lower to increase the contact area between the tire and the ground, thinking that the friction will increase and it is safer. In fact, this kind of thinking is no longer suitable for the current situation. In the past, the tire pressure of automobile tires was generally high. It is correct to lower the tire pressure in winter, but due to the needs of comfort, the normal tire pressure of the current vehicle is already relatively low. If the pressure is lowered again, the tires will be easily damaged. Therefore, the tires of winter vehicles should maintain the standard tire pressure. Specifically, the tire pressure marked on each vehicle shall prevail. Generally, the front tire is 2.2-2.3bar, and the rear tire is 2.4-2.5bar.