Does the tire pressure drop in cold weather need to be inflated?

When the weather gets cold in winter, the tire pressure of the vehicle will automatically drop. When it was cold, the tire was flat. It is precisely because the gas expands with heat and contracts with cold that the air pressure in the tire becomes lower and the tire is flat. If the low temperature does not last long, there is no need to inflate, and the tire pressure will recover when the temperature rises. 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.

If the tire pressure is suddenly low during driving, the detected tire pressure is normal. This is the case that when the temperature is low, the tire pressure monitoring of some vehicles is abnormal and the data is misreported. As long as the actually detected tire pressure is normal, there is no problem and there is no need to entangle the tire pressure alarm.

Generally, the tire pressure detected in cold state is the most accurate. Under normal circumstances, the tire pressures of the front tire and the rear tire in cold state are 2.2-2.3 and 2.4-2.5 respectively, which belong to the normal range. However, the tire pressure of some vehicles is 2.4-2.5 and 2.2-2.3 respectively, depending on the tire pressure marked on the vehicle. According to the principle of thermal expansion and cold contraction, the tire pressure can be reduced by 0. 1-0.2 in summer and increased by 0. 1-0.2 in winter.

In addition to paying attention to the tire pressure, you should also maintain the tires and check the degree of tire wear. When the tread pattern is lighter than 1.6mm, we need to replace the tire. Also observe whether the tire tread has uneven wear or other abnormal symptoms, such as bulging, cuts or cracks. It is necessary to deal with the existing abnormal phenomena in time to reduce the risk factor during driving.