Nitrogen or Air – What is the Best Option for Your Car’s Tyres and Why?

For decades, the only means of refilling car tyres was compressed air. However, with the advancement in technology, nitrogen filling systems have become available to ordinary people. Today, a vast number of British car owners are opting for nitrogen for their car’s tyres.

Nitrogen filled tyres were first used in race cars around the world. As an inert gas, nitrogen reacts lesser in changing temperature, providing standard air pressure for the vehicles. This advantage was quickly picked up by car and tyre manufacturers. They publicised nitrogen as a miracle alternative of compressed air which can sustain your car’s tyres for long drives.

While there are many distinct advantages of using nitrogen in your car’s tyres in Oxford or anywhere else in the UK, there are a few things that you should be aware of before jumping to the conclusion.

Let’s take a look at various aspects of using nitrogen instead of air for your car’s tyres.


  • Sustained Tyre Pressure – Nitrogen can maintain the original air pressure for a much more extended period even with continuous driving. Race car drivers were first to come up against this unique advantage of nitrogen.

Rubber has microscopic pores in its body. As the air heats up and becomes agitated, it seeps through these pores and effectively decreases the pressure inside the tyres. Nitrogen molecules are larger than air molecules, which makes them less susceptible to heating, and prevents it from seeping outside. Pure nitrogen filled tyres can even maintain their pressure in freezing climates.

  • Better Fuel Economy – This is a result of having sustained tyre pressure for a longer time. Under-inflated and over-inflated tyres can affect your car’s fuel economy. Nitrogen filled tyres provide better mileage for longer thanks to its stable nature. Some independent studies show car’s economy rising by almost 10% when using nitrogen instead of air.

  • Reduced Chances Of Corrosion – Water vapour is part of the atmospheric air, which is pumped inside the tyre as it is filled with compressed air. Although the quantity is significantly low, over time, vapour build-up can cause corrosion and deterioration inside the tyre carcass, causing it to fail.

These advantages are enough to convince many to use nitrogen in their car’s Tyres Wheatley or any other part of the country. However, you should also consider a few pointers before coming to a decision.


  • Cost – The cost of filling the tyres with nitrogen can vary, but it is generally higher than using compressed air. Also, to ensure that the nitrogen performs to its pros effectively, it must cover at least 93% of the area inside the tyre. To do this, a tyre needs to be completely deflated first.

It is better to avail this service from a reputed garage because of the cost and the expertise required for this process. You can take your car to a garage like Phillips Tyres and let their technicians go through the process correctly.

  • Types of Driving – Nitrogen might not prove to be very useful for someone driving within the city limits every day. It is ideal for sports and luxury car owners and for people who drive their car for a significant distance regularly.

Using nitrogen to fill tyres definitely has its benefits, but you have to consider whether the cost outweighs the advantages as per your unique necessities. For city dwellers, compressed air will prove just fine. But if you drive a significant distance every day, you should opt for nitrogen to get better mileage, service life and reduced chances of a blowout.

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