What does four-wheel nitrogen mean?
1 Answers
Four-wheel nitrogen refers to replacing the ordinary gas in all four tires of a car with nitrogen. Nitrogen is chemically very inert; it only reacts with hydrogen to form ammonia under high temperature, high pressure, and catalytic conditions. It combines with oxygen to form nitric oxide only under electric discharge. Even reactive metals like Ca, Mg, Sr, and Ba react with nitrogen only when heated. Below are the benefits of filling tires with nitrogen: 1. Reduced probability of tire blowouts: Compared to filling tires with ordinary air, high-purity nitrogen, being oxygen-free, moisture-free, and oil-free, has a much lower thermal expansion coefficient. This effectively slows down the heat buildup in tires, significantly enhancing tire safety and thereby reducing the occurrence of blowouts. 2. Lower driving noise: Nitrogen is a diatomic gas with inert chemical properties and very low audio conductivity, only about 1/5 that of ordinary air. Thus, using nitrogen can effectively reduce tire noise during driving, noticeably improving driving quietness. 3. Extended tire lifespan: After using nitrogen, tire pressure becomes more stable, and the volume change of the gas inside the tire is minimized. This greatly reduces irregular tire wear, effectively extending the tire's service life.
