The decrease in air pressure within tires during colder temperatures is a common phenomenon explained by the ideal gas law. As temperature decreases, the air molecules inside the tire move slower and collide less frequently with the tire walls, resulting in lower pressure readings. For example, a tire inflated to 35 psi at 70F might read 32 psi at 30F.
Maintaining correct inflation is crucial for vehicle safety and performance. Underinflated tires increase rolling resistance, reducing fuel efficiency and increasing wear. They also negatively impact handling and braking, increasing the risk of accidents. Historically, awareness of this temperature-pressure relationship has grown alongside advancements in automotive technology and tire manufacturing, leading to improved safety standards and fuel efficiency recommendations.
