Why do people use nitrogen in tyres during summers?

Whenever you come across a fuel station to check air pressure in your car you may have seen nitrogen gas filling stations and attendants have suggested you for filling nitrogen gas instead of normal air.

The reason is that the amount of nitrogen is present in the air is around 78% while at the same time, the amount of oxygen is only 21 percent. Vapor, carbon dioxide and noble gas are present in the remaining part.

Just as every gas spreads on heating and contracts when it gets cold. In the same way, the air filled in the tyre behaves and the tyre is likely to grow when the gas spreads while the tyre filled with nitrogen gas is less likely to grow and stays stable for a long time due to its property of less expansion.

The second problem of normal air filling is humidity that is harmful for your car tyres. Vapor is present in normal air affects the tyre pressure and also damages the tyre rim of steel and aluminum. The oxygen present in the tire gets paired with water vapors and destroys the rim.

Car handling and mileage also gets better by using nitrogen gas and you will not need to keep checking the tyre pressure frequently.

People use nitrogen in tyres during summers because nitrogen is considered more stable than regular air when temperatures become very high. Nitrogen-filled tyres usually maintain pressure more consistently, which may help improve tyre life, fuel efficiency, and driving stability. Since nitrogen contains less moisture compared to normal air, it can also reduce the chances of pressure fluctuations caused by heat. Many people especially prefer it for long highway drives, high-speed vehicles, and hot weather conditions. However, regular air also works fine for most everyday driving if tyre pressure is maintained properly. Honestly, correct tyre pressure matters more than whether the tyre contains nitrogen or normal air.

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People use nitrogen in tyres during summers because it helps maintain more stable tyre pressure compared to regular air. Nitrogen is less prone to expansion when exposed to heat, so tyres filled with nitrogen experience smaller pressure changes as the temperature rises. This leads to:

• Better fuel efficiency

• Improved tyre life and even wear

• Enhanced safety with reduced risk of blowouts

• More consistent handling and performance

Regular air contains moisture and oxygen, which expand faster with heat, causing greater pressure fluctuations. Using nitrogen provides more predictable and safer tyre performance, especially in hot weather or long drives.