Many drivers wonder if they can replace nitrogen with regular air in their tires. While looking for a way to keep tires inflated longer, especially in changing temperatures, some consider inflating ...

Keeping our tires in good working condition is an important responsibility for the everyday driver. To get the most miles out of your tires, routine maintenance and making sure your tires, suspension, ...

Have you ever noticed cars with mysterious green valve stem caps on their tires? If you have, you may wonder why some people choose to use them. Don't worry — a lot of people have the same question, ...

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 alone. It's a popular question, and one many people answer incorrectly.

The topic of filling a vehicle's tires with nitrogen instead of just plain compressed air is not new. When this option was first available to drivers, it was met with skepticism, but then it just ...

With a Master's degree in English Literature and six years of writing experience, Aayush has been contributing to TopSpeed for over two years. Since 95% of his personality is motorcycles, he goes ...

Seen any green caps on truck and trailer tires recently? Probably not. Those hard-to-miss caps are a telltale sign that those tires are filled with nitrogen, which tire experts say reduces air ...