What is Nitrogen Filling in Tyres?

Nitrogen is less likely to migrate through tire rubber than is oxygen, which means that your tire pressures will remain more stable over the long term. Racers figured out pretty quickly that tires filled with nitrogen rather than air also exhibit less pressure change with temperature swings.

Benefit of Nitrogen Filling in Car Tyres

  • Reduce fuel cost
  • Improve handling
  • Lower CO2emission
  • The car runs smoother
  • The life of the tyre is increased
  • Tyre pressure is maintained
  • It doesn’t affect the rims


Drivers across Pakistan have many questions regarding the use of Nitrogen for car tyres. Questions like what does Nitrogen do to car tyres? Is the use of nitrogen gas safe? Is the additional cost justifiable? Are on the minds of many
Well let’s start off with the basic question, what is nitrogen? Nitrogen is a colourless gas that makes 78% of our atmosphere. It is odourless and tasteless. And yes, there are many benefits of using Nitrogen gas for inflating car tyres. Here are a few of them:

Nitrogen is known to reduce the temperature of car tyres

Does Nitrogen gas keep the tyres cool?

Well according to research, the dryer the air the cooler the tyre remains. Regular compressed air has a considerable amount of moisture in it, thus resulting in the tyres to heat up at high speeds. Nitrogen contains less moisture, and that is why it keeps tyres cooler. So it might be a good idea to fill nitrogen in your tyres if you travel a lot and speed a lot.

Tyres life?

Well yes, since temperature is reduced by nitrogen gas it will increase your tyres life. High temperatures do cause more wear and tear of tyres. Though this doesn’t mean that a car tyre life would be doubled, regularly check the condition of your tyres.

Does Nitrogen maintain tyre pressure?

Tyre pressure changes with temperature. It is a good practice to check tyre pressures regularly, especially when the weather gets colder. Tyre pressure of normal air is said to increase with an increase in temperature. Nitrogen gas, on the other hand, has a stable pressure to temperature range, therefore maintaining tyre pressure better than normal compressed air.

Does Nitrogen gas escape tyres slowly compared to normal air?

The air of your tyres will eventually leak over time; this is something that does happen over time. This is because tubes and the tyre linings are porous to some extent. It is, therefore, a good practice to check tyre pressure regularly. Nitrogen leaks slower than normal air because of its chemical structure.