How Does Tire Pressure Work And How Does It Affect My Drive?

Tire pressure is the measure of air in your tires. Learn how it works and why maintaining it is one of the most important vehicle safety measures you can take.

1. How does it work?

Air molecules within the tire moving around 1,000 miles per hour push outward, creating tension and inflating your tire.

2. How does it affect my driving?

Correct tire pressure helps ensure proper stability and braking, allowing for a safe, comfortable and fuel-optimized ride.

3. What happens if my tire is underinflated?

An underinflated tire will put undue wear on the shoulders of the tread, leading to poor driving performance, decreased road grip and an increased chance of hydroplaning.

4. How is it measured?

If your vehicle has it, your Tire Pressure Monitoring System (TPMS) will monitor your tire pressure and let you know if any of your tires are significantly underinflated. If not, use a tire pressure gauge and air pump to check to see if it matches your vehicle tire label on the B-pillar or driver’s door.

5. How often should I check my tire pressure?

On average, tires lose around 1 psi of pressure a month, and lose an additional 1 psi for every 10-degree drop in outside temperature. You should check your pressure before long trips or after particularly strenuous drives.


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