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 ...

Understanding the Context

SlashGear: Is It Safe To Add Regular Air To Nitrogen Tires? Here's What You Should Know Is It Safe To Add Regular Air To Nitrogen Tires? Here's What You Should Know The two gases, air and nitrogen, perform similarly in tire operation. The oxygen and water vapor in air do react with the chemical components of the tire, and age it faster than nitrogen does.

Key Insights

Water ... Dear Car Talk: Love your column and read it every week. My son’s car has tires inflated with nitrogen. I’m curious about the pros and cons of that option. I hadn’t heard of this before and wonder if ...

Final Thoughts

CCJ: Nitrogen benefits truck tires but is the high cost worth it?