Will Car Tires Lose Air by Themselves in Cold Weather?
2 Answers
The phenomenon of car tires losing air by themselves in cold weather is relatively rare. More often, air loss is caused by tire damage. Reasons for tire air loss: Air loss may occur due to increased friction between the tire and the ground, or foreign objects puncturing the tire, such as nails, screws, sharp stones, etc. Among these, nails and screws are most likely to pierce the tire, causing the gas inside to leak. If not addressed promptly, it can further damage the punctured area. Normal tire pressure range: The front tire pressure when the car is cold should be between 2.2-2.3, while the rear tire should be between 2.4-2.5, which is within the normal range. However, some vehicles may have front tires at 2.4-2.5 and rear tires at 2.2-2.3. The specific values should be based on the tire pressure indicated by the vehicle. According to the principle of thermal expansion and contraction, the tire pressure in summer can be adjusted 0.1-0.2 lower than the normal value, while in winter, it can be adjusted 0.1-0.2 higher than the normal value.
I've been driving in the north for decades. In winter, tires do appear to lose air, but it's not due to leaks or punctures. It's mainly caused by pressure drop from gas contraction when temperatures fall. This isn't a big issue - just a natural physical reaction, so no need to worry about tire damage. Remember to check tire pressure before each winter, generally maintaining it around the recommended value on the door label. Being 10% lower is common, but prolonged neglect can make driving unstable, especially increasing skid risks on ice/snow while also raising fuel consumption and tire wear. Keep an electronic tire pressure gauge handy, check monthly or after sudden temperature changes, and simply top up when needed. It's a small matter but shouldn't be overlooked.
