Tire inflation pressure changes by how much for every 10 degrees?

The correct answer is that tire inflation pressure changes by about 1 psi (pound per square inch) for every 10 degrees Fahrenheit of temperature change. This means that as temperatures increase, the air inside the tire expands, leading to an increase in pressure, while a drop in temperature causes the air to contract, resulting in lower pressure.

Maintaining the proper tire pressure is crucial for vehicle safety, fuel efficiency, and tire longevity. The increase or decrease in tire pressure due to temperature fluctuations is a key factor that mechanics and vehicle owners must consider, especially in regions where temperatures can vary significantly.

In the context of the other options, values such as 30, 60, and 90 could imply much larger changes in tire pressure, which would not accurately reflect the typical behavior of air in response to temperature changes in a tire. Understanding this relationship is important for ensuring tires are properly inflated, contributing to the vehicle's overall performance and safety.