The Ultimate Guide of Using Nitrogen in Tyres

From the 1980s to today, use of nitrogen in tyres has sparked heated debates worldwide.

Does it live up to the hype, or are the benefits overstated?

If youΓÇÖve been struggling with these questions, then this blogΓÇÖs for you.

Inert gas and having smaller molecules are all features of nitrogen.

This makes it ideal to fill tyres.

Generally, tyres that are nitrogen-filled record better fuel-consumption and better tyre pressure. 

To provide you with the facts, clear up confusion, and help you decide.

WeΓÇÖll cover everything you need to know about nitrogen in tyres: 

• Its importance
• Pros and cons
• Whether it suits your driving needs

So, buckle upΓÇöyour journey into the world of nitrogen tyres starts now. 

What are Nitrogen-filled tyres, and why are they important ?

In short, nitrogen-filled tyres are the ones filled with nitrogen rather than air.

When you fill your tyres with regular air you are filling it with nitrogen too.

But hereΓÇÖs the thing, you are adding other things as well.

These include oxygen which is a major drawback as its molecules are too tiny.

They can pass through the tyreΓÇÖs surface causing a sudden drop of tyre pressure.

HereΓÇÖs where nitrogen saves the day.

In contrast with Oxygen, Nitrogen molecules are larger in size.

Which makes it hard for them to escape.

This maintains tyre pressure for longer. 

A study conducted by consumer reports in 2024 found that : 

Nitrogen does help tyres lose pressure slower, but the difference over a year was only about 1.3 psi.  

The exact date of using nitrogen in tyres is unknown.

In 1987, the Federal Aviation Administration (FAA) mandated all airplanes to use nitrogen.

Previous nitrogen systems were large and stationary, requiring many outlet locations for servicing.

Current nitrogen systems are mobile.

Eliminating the need for a fixed location.

To dig deep, hereΓÇÖs a brief overview about the history of nitrogen in tyres: 

 To wrap up these are the most important dates in nitrogen tyre evolution:

• 1960s: NASA adopting nitrogen-inflated tyres for their space exploration vehicles. 
• 1980s-1990s:  Nitrogen-inflation becomes more popular and used by commercial vehicles. 
• 2000s-Now:  Nitrogen is popular and gets promoted as a premium service.

Permeation

Slow loss of gas through tyre rubber. Nitrogen permeates more slowly than oxygen.

Oxidation

Oxygen inside tyres can react with steel belts and rubber, leading to deterioration over time.

Rolling Resistance

For a tyre to move at a fixed rate it requires energy. 

This energy is rolling resistance. 

The lower the resistance the better as this results in better fuel efficiency. 

Inert Gas

A gas that, in certain conditions, does not experience chemical reactions. 

Nitrogen is inert by nature.

Making it ideal for circumstances where chemical reactions are undesirable. 

Nitrogen-Filled Tyres: Practical Examples and Case Studies

1. Improved Tyre Pressure

NHTSA (NationalHighway Traffic Safety Administration) stated that nitrogen-filled tyres stay at the right pressure for longer.

2. Reduced Oxidation

Did you know airplane tyres use nitrogen to prevent getting rusty?

This is because it's a major safety concern when roaring in the sky.

3. Enhanced Safety

Nitrogen-filled tyres are less likely to get punctured because they stay at a steady pressure and run cooler.

4. Better Heat Resistance

Heavy applications (trucks,buses,etc) use nitrogen to prevent heating or cooling down.

Especially when carrying heavy loads. 

Find a Nitrogen Filling Station

Find a place that fills tyres with nitrogen.

Make sure they're using pure nitrogen (at least 95%) for the best results.

Completely Deflate the Tyre

The technician will use a valve core tool (special tool) to remove the valve core , letting all the air out. 

This makes sure your tyreΓÇÖs filled with nitrogen only. 

Inflate with Nitrogen

The technician will connect a nitrogen inflator to the tyre's valve stem.

He will then fill it up to the recommended pressure. 

You can usually find this pressure listed on the tyre's sidewall or in your car's manual.

Confirm and Adjust Pressure

The technician will use a tyre pressure gauge to check the pressure and set it to the correct PSI.

Repeat for Each Tyre

Repetition of the steps will take place on the 4 tyres. 

Note

Tyre pressure can change even with nitrogen, especially when temperature changes.  

So, check your tyre pressure monthly and top up with nitrogen if needed.

Remember that even with nitrogen, you still need to check, rotate, and maintain your  tyres.

Tips and Reminders for Maintaining Nitrogen-Filled Tyres 

Top Up with Nitrogen Only

Top up your tyres with nitrogen to maintain optimal tyre pressure.

If you use regular air, you'll dilute the nitrogen and it won't work as good.

Check Tyre Pressure Regularly

Tyre pressure changes with temperature, even when filled with nitrogen.

So, check it every month and make sure it matches what the manufacturer recommends.

Inform Your Technician

If you're heading to the mechanic, mention that your tyres are nitrogen-filled.

This will prevent them from mixing regular air with nitrogen by accident. 

Be Mindful of Cost

Nitrogen inflation is a bit pricier than regular air. 

So, you'll want to weigh the pros and cons, and think about your budget before making the switch. 

Don't Neglect Regular Maintenance

• pressure checks
• rotation
• wheel alignment

Analyzing NitrogenΓÇÖs Effectiveness in Tyres

How to Check Nitrogen Benefits

Keep in mind that things like your: 

• Road conditions
• Driving conditions 
• The quality of tyres 

Can affect these indicators. 

Look after these indicators and you'll figure out if nitrogen is the way to go for your car.

FAQΓÇÖs 

1.Does nitrogen increase tyre life?

Yes, nitrogen-filled tyres can last longer than air-filled tyres due to reduced oxidation and more stable tyre pressure, which minimizes wear and tear. 

2. What are the benefits of using nitrogen instead of regular air in tyres?

Benefits of Nitrogen-Filled Tyres:

• Consistent Tyre Pressure:

Nitrogen maintains stable tyre pressure, reducing the need for frequent refills.

• Improved Fuel Efficiency: 

Nitrogen helps keep tyres inflated, improving fuel efficiency.

• Reduced Tyre Oxidation:

Nitrogen is less likely to cause tyre oxidation,  extending tyre lifespan.

3. How long does nitrogen last in tyres?

A nitrogen-filled tyre maintains pressure up to a year.

A rule of thumb is to check them every few months though. 

4. Can we mix nitrogen and normal air?

 Mixing nitrogen and regular air in your tyres won't cause damage, but it's not recommended. 

Using both reduces nitrogen purity reducing its benefits. 

5. How to tell if a tyre has nitrogen?

While green valve caps gives it away, it is always advisable to check with a tyre shop to be certain.

6. Does nitrogen increase mileage?

Yes, due to stable tyre pressure improving fuel efficiency.

Resulting in better and increased mileage. 

7. Do nitrogen-filled tyres lose pressure in the cold?

While, they maintain pressure in different temperatures.

They are no exception to losing pressure in extreme cold. 

So, that's the lowdown on nitrogen-filled tyres! 

We've gone through the good, the bad, and the "meh," and now it's up to you to decide if it's the right move for your ride.

If you're still on the fence about nitrogen, don't sweat it! 

We've got a bunch of other articles on tyre care and performance that might help you out. 

You can also swing by our website tyresonline.ae anytime for the latest tyre tips and tricks.

We're all about helping you make smart choices and keep your car running like Usain Bolt! 

Ready To Roll?

Whether you're team nitrogen or team regular air, we've got the tyres for you.

 Visit Tyresonline.ae and explore our massive range and find the perfect set to keep you rolling. 

Written & Edited by : Rageh