Which Is Better for Your Car’s Tires: Air or Nitrogen?

zThe roads in the UAE are long and the temperatures are always high. Thus, tire pressure is essential for your safety on the road.

Tire pressure affects driving performance, handling capabilities, braking power, vehicle stability, handling characteristics, and traction. Proper tire pressure also prolongs tire life. An improperly inflated tire may result in damage, premature failure, or even a blowout.

The air inside the tire goes into a free expansion when the tire heats up. That expands the air volume in the tire and causes it to rise. With nitrogen in the tires, the gas doesn’t expand. Instead, the molecules bond together and form a liquid. For more information there is an article here.

As the temperature increases, this bond breaks down, allowing the molecules to separate and not push against each other. That allows better heat transfer between the tire and the ground.

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Both inflation options are good. What differs most is that the pressure in a tire inflated with nitrogen will remain more stable than that of a tire inflated with compressed air, even with temperature differences.

Like air tires, a gradual drop in pressure can also occur due to several factors, such as potholes, a faulty valve, or a lack of seal between the tire and the rim.

As a safety measure, you should regularly check that your tires maintain the correct pressure.


The cost of using nitrogen in car tires is higher than using air. However, the cost is only higher the first time you inflate your tires with nitrogen. Then you will only need to increase the nitrogen from time to time to top up the tire pressure.

Car owners who want to preserve their vehicle’s value should consider using nitrogen gas as a tire inflator. By replacing air with nitrogen, drivers will experience fewer flat tires and spend less time and money at the mechanic.

However, maintaining nitrogen-filled tires is more expensive because once you fill your tires with nitro once, you have to use it each time.

Although adding normal compressed air to the tires will not cause an explosion, it will deactivate the beneficial features you expect from nitrogen.

Tires Lifespan

Tire pressure is a vital part of every vehicle’s performance. Tires play a role in safety and longevity. Even small changes in tire pressure can drastically affect fuel economy and handling. Many drivers ignore the fact that they should check the pressure regularly.

No matter what you fill your tires with, you can not neglect to check the pressure from time to time.

When talking about the lifespan, filling the tires with nitrogen can extend the tire’s life.

Nitrogen does not interact with the rubber, the main tire component. Therefore, the life of the tire increases and serves for a longer period.

Another advantage is that nitrogen-filled tires preserve moderate temperatures during heat cycles. And everybody knows the bad effect of heat on tires.

Fuel Consumption

A stated fact is that things that affect the mileage are the tire pressure and the driving and braking style.

Using nitrogen in tires helps in one way or another reduce fuel consumption because the tire pressure remains at a good level as nitrogen molecules are larger than oxygen molecules and do not leak quickly. Maintaining the right pressure for long periods reduces the level of friction on the street, thus, is beneficial for fuel consumption.


Filling tires with nitrogen is an environmentally friendly alternative to normal compressed air. The number of tires damaged due to the use of normal air is more than their counterpart that is filled with nitrogen.

So, you can reduce your carbon footprint when converting to nitrogen.

In a nutshell, the difference isn’t all that great. What matters is the inflation pressure in a vehicle’s tire, the speed of the vehicle, and how the driver handles its accelerator/brake pedals.

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