As temperatures trend hotter across the country, it’s a good time to think about how heat in general affects tire performance. Specifically, how heat and tire pressure are related. The relationship between the two might not be quite as straightforward as you might think. For example, what does it mean when you have one hot tire? We’ll cover the basics — like what happens to your tires when the outside temperature increases — as well as the importance of keeping close tabs on your tires’ pressure, temperature, and performance.
Tire pressure and tire longevity
As most of us know, an underinflated tire exposes more surface area of the tire to the pavement. And the friction this causes can quickly increase the temperature of the tire, compromising its integrity. A slightly underinflated tire will deteriorate far more quickly than a properly inflated tire. But the problem doesn’t stop there.
An overinflated tire also presents longevity issues. When a tire is overinflated, less surface area comes into contact with the pavement, which contributes to uneven wear as the force and weight of your vehicle fall on a smaller surface area.
This is why it’s crucial to maintain tire pressure in the Goldilocks zone — not overinflated, not underinflated. This is an easy enough task when you regularly check the tire pressure, and it’s a great practice to make your tires last longer. But what happens when your tires are exposed to extreme temperature fluctuations as you travel? Both overinflation and underinflation put your tires at risk, and it becomes increasingly difficult to moderate the changes during hot summer months.

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