Does temperature change affect tire pressure?
Does temperature change affect tire pressure? When this concept plays out inside your tires, it can affect your tire pressure. That's because tires lose or gain 1-2 pounds per square inch (PSI) for every 10℉ change in temperature. So theoretically, your tires could lose 4 PSI over the weekend if the temperature drops by 20℉! Can I take a test with a tire pressure light on? Answer: The tire pressure light will not cause a smog check failure, assuming in fact non of the tires are low in pressure. Worst case scenario, if a tire pressure is low, the smog...