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

In winter, when the weather gets cold, the vehicle tire pressure will automatically drop. When it's cold, the tire flattens. It's precisely because the gas expands with heat and contracts with cold that the air pressure in the tire becomes lower, and the tire flattens. If the low temperature does not last for a long time, it is unnecessary to inflate, and the tire pressure will be restored when the temperature rises. If the low temperature lasts for a long time, the owner can inflate it properly, but not too much to avoid the phenomenon of high tire pressure.

if the tire pressure is suddenly low and the detected tire pressure is normal while driving, this situation is that when the temperature is low, the tire pressure monitoring of some vehicles is abnormal, resulting in false alarm. As long as the actually detected tire pressure is normal, there is no problem, so there is no need to worry about the tire pressure alarm.

Generally, the tire pressure detected in the cold state is the most accurate. Under normal circumstances, the tire pressure of the front tire and the rear tire is 2.2-2.3 and 2.4-2.5 respectively, but some vehicles have the tire pressure of 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 in summer can be lowered by .1-.2 compared with the normal value, while the tire pressure in winter can be raised by .1-.2 compared with the normal value.

besides paying attention to the tire pressure, we should also maintain the tires at ordinary times and check the degree of tire wear. When the tread pattern is lighter than 1.6mm, we need to replace the tires. 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 and reduce the risk factor during driving.