Will the tire pressure drop automatically in winter? Why do tires get flat when it's cold?

When the weather gets cold, the tire pressure of the vehicle will automatically drop. In cold weather, due to the expansion and contraction of gas, the pressure in the tire becomes lower, which leads to the flattening of the tire.

When the temperature drops, many car owners will display the alarm of low tire pressure. Many car owners are hesitant about whether to inflate. If the low temperature lasts for a long time, they can't inflate until the temperature rises and the tire pressure recovers. If the low temperature lasts for a long time, the owner can inflate it properly, but not too much, so as to avoid the phenomenon of high tire pressure.

Another situation is that the tire pressure is suddenly reported on the road, but the tire pressure is actually normal. This situation is that the tire pressure monitoring of the vehicle has some abnormalities at low temperature and misreported the data. As long as the tire pressure is actually checked, there will be no big problem, and there is no need to entangle the tire pressure alarm too much.

Generally speaking, the tire pressure detected in cold state is the most accurate. Under normal circumstances, when the vehicle is cold, the tire pressure of the front tire is 2.2-2.3, and the tire pressure of the rear tire is 2.4-2.5, which belongs to the normal range. However, some vehicles have a front tire pressure of 2.4-2.5 and a rear tire pressure of 2.2-2.3. According to the principle of thermal expansion and contraction, the tire pressure can be lower than the normal value by 0. 1-0.2 in summer and higher than the normal value by 0. 1-0.2 in winter.

Besides paying attention to tire pressure, we should also pay attention to tire maintenance and check tire wear. When the tire tread is shallower than 1.6mm, we need to replace the tire. Also observe whether the tire tread has uneven wear or other abnormal symptoms, such as bumps, cuts or cracks. Deal with abnormal phenomena in time to reduce the risk factor during driving.

Although most cars are equipped with four-season tires as standard, in northern China, some still need to use more related winter tires or snow in winter, especially in northeast and northwest China. Snow roads and icy roads are more common. Winter tires have better grip, and snow tires can improve the safety performance of car owners on the road.

At ordinary times, we should also learn to maintain tires, check the wear degree of tire patterns, and check whether the tread has uneven wear or other abnormal symptoms, such as bulging, cuts and cracks. Deal with these dangerous factors in time to prolong the service life of tires.