It does not harm tyres and may marginally contribute to reductions in tyre inflation loss by permeation. However, the use of nitrogen alone does not substitute for the importance of regularly checking tyre inflation pressure.
Many vehicle owners wonder why Nitrogen instead of good old regular air. Even the air contains around 79% Nitrogen. The reason for choosing Nitrogen is better tyre performance. This is because air contains 21% Oxygen as well. For owners who do not know the fact that Oxygen causes oxidation which is the absolute enemy of anything composed of rubber and steel such as tyres and wheels. This makes nitrogen inflation a better choice for the long life of your tyres and wheels.
On the other hand, compressed air used by many tyre retailers and auto-shops is even worse than regular air as it adds trace amounts of oil, particulate, and water vapor. All of that compromises your tyre and wheel assemblies. Secondly, due to being smaller, Oxygen molecules encourage permeation and the tyres face rapid air loss. Eliminating oxygen leads to better pressure retention. Nitrogen filled tyres lose way less pressure from permeation. By inflating your tyres with high purity nitrogen will maintain proper operating pressure for long.
At Singh Tyre House, we specialize in Nitrogen inflation in all types of car and truck tyres. Our expert technicians understand the expectations you have for your vehicle and the care your tyres require.