Can you mix nitrogen with air in your tires?

Nitrogen gas can be used to inflate tires instead of regular compressed air, which is mostly nitrogen with some oxygen and water. Nitrogen molecules are larger than oxygen molecules and therefore less likely to escape through the walls of the tire, resulting in slower tire pressure loss. In addition, nitrogen is less prone to oxidation and temperature changes, making it more stable than compressed air. This makes nitrogen-filled tires more predictable in terms of pressure and performance, and can lead to improved fuel efficiency, longer tire life, and better overall handling. However, it's worth noting that the benefits of using nitrogen in tires may be relatively small compared to the cost of filling tires with nitrogen, which is typically more expensive than regular air.