As the name suggests, NPTs do not require air pressure. Hankook Tire has continued researching on the new tire technologies particularly for NPT since 2011. Crucially, the company has been working ...

The free air at Stewart's Shops is a must-have for drivers facing soft wheels, but the air pressure machines are susceptible ...

If you accidentally over inflate a tire, Firestone recommends releasing excess air through the valve stem, but only after the tire is completely cold—ideally after parking the car for a few hours. In ...

Amerityre Corporation announced today that production quality prototypes of its "zero pressure" (no air) space saver spare tire are being delivered to auto companies for testing and evaluation.

If you've ever noticed green-capped stems on tires in a parking lot and wondered why the car's owner chose them, you're not ...

One important thing to keep in mind is that tire pressure varies with temperature. That’s because the air that fills the tire expands as it gets hotter (thereby raising the pressure) and ...