Each time you go to a tyre shop or a gas station to top up the tyre pressure in your vehicle’s tyres, what the attendant fills into the tyre is normal compressed air. But what exactly does compressed air contain? Compressed air is made up of 78% nitrogen, about 20-21% oxygen, and the balance one percent consists of CO2, and tiny concentrations of gases such as neon, argon and water vapour.

 When you specifically fill nitrogen gas into the vehicle's tyres, then you should have 100% dry nitrogen in your tyre. Dry nitrogen denotes that no        moisture content or any other gases are present in the tyre.

 Jay Chakraborty, who recently bought a second hand car, says, “After I bought my car, I changed the tyres and I’ve heard so many people talk about  how good nitrogen has been for them that I decided to get my new tyres filled with nitrogen air. The car feels a lot better on bumpy roads, and I don’t  have to worry about checking tyre pressure every week.”

Benefits of nitrogen Vs compressed air

Nitrogen as a gas is made up of big molecules, whereas oxygen molecules are much smaller in size compared to nitrogen molecules. When compressed air is put into a vehicle’s tyres, the moisture in the tyre seeps through the rubber over time and evaporates quicker as its molecules are smaller in size. But as nitrogen molecules are bigger in size, they do not permeate the tyres rubber so easily and hence will stay in the tyre for a longer duration. This means that your vehicle’s tyres will lose less pressure over time compared to regular compressed air filled tyres.

For example: An inactive vehicle, whose tyres are filled with normal compressed air will lose tyre pressure every week. But a 100% nitrogen-filled tyre will lose tyre pressure a lot slower and won’t need to be topped up as frequently. 

Titus Remedios, “I filled nitrogen in the new tyres that  I purchased for my Maruti Ecco in June 2019. That time the tyre pressure filled with nitrogen was 35Psi. I use the car once a week and after the lockdown, the car hadn’t been used in months. I recently went back in October 2020 to the place where I had filled the nitrogen in the car tyres and the tyre pressure after 14 months had only dropped to 22Psi. .

Another point to note, nitrogen filled tyres get a green or blue colour valve cap. This is a universal symbol that your vehicle's tyres are filled with nitrogen and not compressed air.

Is Nitrogen right for you?

Over-inflation and under inflation of tyres make a major difference on the race track. But on your normal city road does it make a huge difference? Under-inflated tyres normally lead to less mileage, uneven wear on the tyre treads and more tyre wear and tear overall. Over inflated tyres run the risk of burning out the contact patch on the tyre too quickly, while adding more bounce vs grip to a vehicle's stability. In hot climate conditions, your vehicle's tyre pressure can jump up tremendously. Highway running speeds coupled with a harsh sun beating down, can lead to a  tear in the tyre or in extreme conditions, a tyre bursting. This is where nitrogen-filled tyres shine the most. Due to their molecular build, nitrogen molecules stay at a constant temperature in a tyre. So even if the temperature outside decreases or increases, the nirotgen in the tyre will remain the same. That is why race cars and racing motorcycles only use 100% nitrogen in their tyres all the time.

Now we are all not professional racers, but we do commute on a daily basis and even go for the occasional weekend drive out of the city for some sightseeing and relaxation. Will filling nitrogen in your vehicle's tyre help you? There are many who swear by nitrogen-filled tyres and an equal amount who feel that regular compressed air works just fine.

Personal tyre maintenance

If you are someone who keeps a check on the vehicles tyre pressure weekly and tops up the air when needed, you won’t need nitrogen filled into your vehicles tyre. However, if you are someone who tops air pressure once a month or once in two months, then filling nitrogen in your vehicle's tyres will help you reap the benefits of it. If you constantly make long highway trips and most of your time is spent behind the wheel, then filling nitrogen in your vehicle's tyres will be a boon.

Yash Ramrakhyani from Palghar runs a big tyre shop which sells Apollo, Bridgestone, Continental, Michelin and Yokohama tyres for every vehicle from a scooter to a heavy duty tempo. He says, “I get an average of 300 customers a year who want nitrogen filled in their vehicle’s tyres. There was a big local demand in the area for nitrogen-filled tyres, hence my father and me invested in the nitrogen unit. Tyres don't get hot, and nitrogen level doesn't go down so fast is what I have heard from customers as feedback, but the fact that people think nitrogen levels in the tyre doesn't go down is false. Even nitrogen-filled tyres have to be checked for tyre pressure once a month.

Nitrogen myths busted

Myth 1: Your vehicle's mileage will increase.

Truth: Your vehicle’s mileage depends on a lot of factors, tyres being just one small part of that equation. Having nitrogen filled tyres only gives you the benefit of having a most constant tyre pressure. However compressed air and nitrogen filled tyres both will loose pressure after a certain amount of time.

Myth 2: Your vehicle's comfort will be better, it will be soft on bumps.

Truth: Compressed air or nitrogen filled tyres will react the same way when on bumpy roads. It is the rubber compound and the type of tyres that you have that will make a difference in the ride or drive quality. As long as you maintain the right air pressure in your vehicle's tyres, you’ll be good.

Myth 3: You won’t have to fill up the tyre pressure as frequently.

Truth: Well this is true. Nitrogen-filled tyres will retain the pressure in your vehicle's tyre for a longer time duration compared to tyres filled with compressed air. However, even nitrogen-filled tyres loose pressure over time and you have to get the pressure checked and topped up from time to time.

Myth 4: Your vehicle's tyre will last longer

Truth: The tyre on your vehicle rely on you to make sure you maintain the recommended air pressure inorder for it to do its job properly. Under inflated and over inflated tyres will wear out faster when compared to tyres that have been properly maintained.

Myth 5: The rims on your vehicle won't rust

Truth: There is some amount of truth in this. As nitrogen-filled tyres contain less or no water vapour, the moisture content in the tyre is less. Less moisture equals to less rust on the inside of the wheel. But that doesn’t stop the rest of the wheel from rusting due to everyday washing and climate conditions.

Myth 6: There are few tyre shops / fuel pumps that offer nitrogen.

Truth: Compressed air is mostly nitrogen gas. So even if you have nitrogen-filled tyres, but you’re running low on tyre pressure and there’s no nitrogen filling station around, you can still fill normal compressed air. It will not have any major impact on your vehicle's tyres. Maintaining the right tyre pressure is key.

The catch

The nitrogen that you get filled in your vehicle's tyres is not a 100% or even 99% pure nitrogen. A brand new or even an old tyre once deflated has some amount of air inside it. It is the atmospheric air that's already there all around us. So unless you drain all the air in the tyre out and refill it nitrogen and drain the tyre again 2-3 times, you’ll still be running your vehicle's tyres with 90% nitrogen and not 100% nitrogen. But even then you’re not guaranteed that your vehicle's tyres will be filled with 100% pure nitrogen. There is no way to measure how much nitrogen is there in your vehicle’s tyre. Nitrogen will cost you, whereas compressed air is free at most petrol pumps or Rs.1-2 at a tyre shop. Nitrogen costs on the other hand vary from place to place and the kind of machine they have. The machines that are at the tyre shops or petrol pumps that offer nitrogen, do not deliver pure 100% nitrogen! Some machines will have a percentage rating of how much nitrogen it provides to the tyre and some have no percentage levels at all. Filling nitrogen in your vehicle's tyres can cost you anywhere from Rs.150 for four tyres to Rs.50 per tyre and can go all the way up to Rs.1,500 for a set of four tyres.

Conclusion

Have you ever noticed that vehicle manufactureres never recommend nitrogen in their manuals or at their service centers. The reason behind this is your vehicle's tyres are manufactured to run on normal compressed air. As long as you maintain the right tyre pressure in your vehicle’s tyre, you’ll be fine.

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Bridgestone has expanded its road safety efforts in Scotland by hosting its inaugural dedicated tyre safety event in the region. The initiative, held at Betty’s Diner off Westfield Road in Motherwell, drew such a strong response from local motorists that additional visits north of the border are already being arranged.

Working alongside Auchinlea Tyres, the company inspected over 100 tyres during the event while offering drivers guidance on tyre safety and the value of routine checks and maintenance. The results underscored the need for such efforts, with 16 percent of tyres requiring urgent attention and a further 24 percent flagged for close monitoring.

To encourage awareness of basic tyre checking practices, ‘Become a Bridgestone Road Safety Hero’ bags were distributed, and the firm’s branded VW Buzz drew considerable interest when parked at the site. Organised by Chris Liddle, Key Account Manager for Consumer and Commercial Products, the event forms part of Bridgestone’s wider Become a Road Safety Hero campaign, which sees colleagues across the UK engaging with motorists to promote essential tyre safety messages.

Recent data reinforces the campaign’s urgency. TyreSafe estimates that 6.1 million tyres on UK roads are illegal or dangerously worn at any given time, often because tread depth falls below the 1.6 mm legal limit. Meanwhile, the Department for Transport’s Reported Road Casualties Great Britain: Final Results 2025 report showed that people killed or seriously injured in collisions involving illegal, defective or underinflated tyres rose from 169 in 2024 to 201 in 2025. For Bridgestone, events like the Scottish check transform safety messaging into practical advice, letting motorists have their tyres inspected while learning simple self-checks.

Liddle said, “This was a really important event for us because it was the first time we have taken our road safety outreach into Scotland in 2026 and the response was fantastic. We inspected 25 vehicles and 100 tyres during the event, giving us a great opportunity to speak directly to motorists about the importance of checking their tyres and making sure they are safe and properly maintained. The feedback we've received since our visit has been extremely positive, and we've already been asked if   we could hold similar events with Auchinlea Tyres. That's a great indication of how successful the day was. We're now looking at the possibility of taking the Road Safety Buzz to different locations across Scotland before the end of the year, working with Scottish dealers to help engage local communities. The Buzz certainly attracted plenty of attention. It's a real head-turner and a great way of starting conversations with people about tyre safety.”

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Maxion Wheels has reaffirmed its dedication to responsible business practices, operational excellence and environmental stewardship by strengthening a resilient and sustainable global supply chain. The company emphasises that collaboration with suppliers sharing its values is vital for delivering long-term value to customers, communities and stakeholders while maintaining high expectations for performance in quality, delivery, sustainability, innovation and ethical conduct. The 2025 Maxion Wheels Supplier Awards recognise exceptional partners whose contributions have advanced the business and reinforced its supply chain worldwide.

Among the honourees, Akzo Nobel Coatings Ltda of Brazil received the Supplier of the Year award for the Americas. A global leader in paints and coatings, AkzoNobel supports Maxion facilities in Brazil and Argentina with liquid and powder coating technologies. In 2025, it earned an ‘A’ rating in the annual Supplier Performance Evaluation for its commitment to quality, innovation, sustainability and supply reliability.

For Asia, JSW Steel Limited of India was named Supplier of the Year. Part of the O.P. Jindal Group, JSW Steel is one of India’s leading steel manufacturers, with an annual production capacity of 35 million tonnes across six plants. As a strategic partner for Maxion India, it supports product development, operational flexibility and business growth. Its senior leadership engagement and strong collaboration helped it meet all environmental, social and governance requirements, securing an ‘A’ rating.

In the EMEA region, FreiLacke, a brand of Emil Frei GmbH & Co KG, received Supplier of the Year honours. The family-owned German coatings specialist, based in the Black Forest, supplies powder and liquid coatings to several Maxion aluminium wheel plants and supports development for both aluminium and steel applications. FreiLacke achieved Supplier Performance Evaluation scores above 97 and met all quality, ESG and governance requirements, earning an ‘A’ rating.

The Green Wheel Award for 2025 went to Akzo Nobel Coatings CZ of the Czech Republic. Based in Opava, the company is part of the AkzoNobel group and serves as a key supplier to Maxion Wheels Ostrava, providing high-quality coating solutions for wheel manufacturing while demonstrating responsible business practices.

Akzo Nobel Coatings CZ was recognised for outstanding sustainability performance, achieving a Supplier Performance Evaluation sustainability score of 24 out of 25 and full compliance with Maxion’s ESG, governance and responsible sourcing requirements. Supported by AkzoNobel’s ambitious sustainability agenda and strong transparency, the company exemplifies leadership in environmental stewardship and sustainable value creation across the supply chain.

Pia Schütz, Vice President – Global Purchasing, Maxion Wheels, said, “At Maxion Wheels, we view our suppliers as strategic partners in our success. Their dedication to quality, innovation, sustainability and operational excellence enables us to better serve our customers and continuously improve our performance. These awards recognise organisations that have distinguished themselves through exceptional collaboration and a shared commitment to creating long-term value.”

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Hankook Tire has renewed its FIA Three-Star Environmental Accreditation, retaining the highest rating awarded under the Fédération Internationale de l’Automobile’s environmental certification framework. The renewal follows a rigorous assessment by FIA Sustainability, with final approval securing the accreditation through July 2028. Hankook first earned the distinction in 2024 while serving as exclusive tyre supplier and official partner of the ABB FIA Formula E World Championship.

The FIA programme evaluates environmental management across motorsports and mobility, covering performance, energy reduction, logistics efficiency, waste optimisation and carbon neutrality initiatives. Hankook’s renewed status confirms that its motorsport environmental systems satisfy FIA standards. The company has also conducted life cycle assessments for Formula E tyres, spanning raw material procurement, manufacturing and transportation, while tracking carbon footprints throughout production.

Beyond racing, Hankook’s Geumsan Plant became Korea’s first tyre facility to obtain ISCC PLUS certification in 2021. The certification has since expanded to plants in Hungary, Daejeon and Jiaxing, China. The company has additionally secured a long-term renewable energy power purchase agreement for its Hungary Plant and installed solar systems for on-site use at Geumsan, Chongqing and Jiaxing.

Hankook plans to keep reviewing and strengthening ESG management and environmental capabilities across its unified global brand. The renewed accreditation reaffirms the company’s commitment to sustainable motorsport operations while advancing broader environmental goals throughout its international manufacturing network.

Willem Groenewald, FIA Secretary General for Automobile Mobility, Sustainability and Tourism, said, “Congratulations to Hankook on renewing its FIA Three-Star Environmental Accreditation. Earning our highest environmental standard once is an achievement; renewing it shows a commitment that runs deep. As a Global Partner of the FIA, Hankook shares our belief that motor sport can drive innovation from the track to the road, and this renewal is a fitting reflection of the partnership we are building together.”

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Pirelli is all set for Formula 1's newest venue, the Madring, which hosts its first Spanish capital Grand Prix next weekend. The tyre supplier has nominated the C2 as Hard, the C3 as Medium and the C4 as Soft for the 5.416-kilometre circuit, which blends a street section threading between exhibition district buildings with a permanent layout and boasts 22 corners, among them the 550-metre Monumental with its 24 percent banking.

Only 200 metres separate the start-finish line from Turn 1, and the opening sector is extremely fast. The middle part of the lap brings several medium and low-speed corners, including the banked Turn 12, while the closing stretch serves up 90-degree turns reminiscent of Baku.

Pirelli's involvement stretches back three years, when circuit designers first shared details of the intended layout. Simulation tools enabled engineers to trace the paths cars would take and compute the forces tyres would face. Once construction concluded, Pirelli personnel travelled to Madrid to gauge the asphalt's macro and micro roughness, sharpening their simulations and preparing a technical document distributed to teams ahead of the event.

In energy terms, the track sits among the five most taxing on the calendar, generating lateral forces on par with Barcelona and Silverstone. The Monumental produces the year's highest vertical load thanks to both its banking and its length, and it also tests grip, with drivers likely to choose differing approaches depending on whether they favour setting up an attack into the next corner.

Because the asphalt is unusually smooth and offers modest grip, it has been cleaned with high-pressure water jets to strip away dust and oily deposits typical of fresh surfaces, a practice already employed at circuits such as Singapore. Elevation also distinguishes the layout: Turn 7 marks the highest point at roughly 700 metres above sea level, reached via an 8 percent gradient and 10-metre climb from Turn 6, while Turn 2 is the lowest, sitting 26 metres below.

With no testing possible before the weekend, teams will only finalise their programmes and tyre strategies after first practice, possibly reserving Hard sets for Sunday if softer rubber degrades sharply. Last year brought ambient highs of 29°C, though the circuit's altitude makes severe heat improbable. Madrid's region previously staged nine Spanish Grands Prix at Jarama from 1968 to 1981, where Mario Andretti won twice and Lotus took four wins. Across 55 Spanish Grands Prix at five venues, Michael Schumacher and Lewis Hamilton each have six victories, while Ferrari leads constructors with 12.

The Pirelli Design podium cap by Denis Dekovic carries a white crown and the seven stars of Ursa Major under the peak and is on sale through Pirelli's e-commerce platform.

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