What does nitrogen in cars mean?

[VonMaci]

Nitrogen is a diatomic gas with inactive chemical properties and very low audio conductivity, only about 1/5 of ordinary air. Therefore, using nitrogen can effectively reduce tire noise during driving, significantly improving driving quietness. More information about nitrogen in cars is as follows: Reducing the probability of tire blowouts: Compared with filling tires with ordinary air, high-purity nitrogen, because it is oxygen-free, moisture-free, and oil-free, has a much lower thermal expansion coefficient, which can effectively slow down the heat accumulation in tires, greatly improving tire safety and thus reducing the occurrence of tire blowouts. Reducing driving noise: Using nitrogen can effectively reduce tire noise during driving, significantly improving driving quietness. Extending tire service life: After using nitrogen, tire pressure becomes more stable, and the volume change of gas inside the tire is also smaller, which greatly reduces irregular tire friction, thereby invisibly increasing tire life. In addition, the aging of tire rubber is caused by the oxidation of oxygen molecules, which reduces the strength and elasticity of the rubber, resulting in a shortened tire lifespan.