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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Sun Auto Tire & Service has expanded its Midwest footprint by acquiring the Main Street Tire & Auto location in Virden, Illinois. The transaction took effect immediately, and the newly acquired store will become part of the Sun Auto Network before rebranding under the Plaza Tire Service name.

Plaza Tire Service, a Midwest institution known as the ‘Quick Change Artist’ for more than six decades, will see its Illinois presence strengthened through this addition. The move broadens regional service coverage by integrating a trusted community shop with the extensive resources of a national network. Customers at the Virden location will continue to benefit from familiar local relationships while gaining access to enhanced operational support, advanced technology and customer-focused tools.

The Virden site offers a full range of automotive care, including major tyre brands backed by Sun Auto’s price match guarantee, alignments, brake service, oil changes, batteries, diagnostics and preventative maintenance. This acquisition marks the 16th Plaza Tire Service location in Illinois and supports Sun Auto’s ongoing expansion across key Midwest markets.

Rob Kingery, Regional Vice President, Operations, said "Virden represents an important opportunity to continue growing the Plaza Tire Service brand in Illinois. This location allows us to expand our reach while reinforcing the operational strength and consistency our network is known for."

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Pirelli Design and cycling apparel leader Santini Cycling have unveiled the Santini x Pirelli Sport Club 2026 collection, an evolution of their partnership launched in 2024. Inspired by the Pirelli Sport Club, founded in Milan in 1922 to encourage employee physical activity, the line celebrates Italian craftsmanship, performance and style.

The 2026 collection expands with fresh garments and graphic updates. Among the technical highlights is the new Fast jersey, engineered for maximum aerodynamics with ultralight fabrics and a second-skin fit. Returning Ruota and Tape models receive refined detailing, while the Pirelli SC jersey now features an all-over logo pattern in black and a new chocolate colourway.

All jerseys have a unisex fit and pair with Pirelli SC bib shorts with a C3 chamois for long-distance comfort. A heritage wool jersey features an embroidered Pirelli logo, mother-of-pearl buttons and a metal zipper. The new road skinsuit maximizes aerodynamic efficiency with breathable upper fabrics, woven striped sleeves and high-density lower section for muscular support.

Technical pieces include baselayers, a packable wind jacket and vest, plus socks, caps and bottles. A lifestyle line offers T-shirts, sweatshirts and casual garments with premium materials and distinctive graphics. The collection unites sporting passion, industrial heritage and design excellence, offering cyclists a cohesive wardrobe for both competition and daily life.

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TyreSafe has formalised a new media partnership with On Air Media Group, marking a strategic push to expand its road safety messaging through high-impact radio broadcasting. The arrangement cements a previously informal working relationship that had already produced several nationwide campaigns, including a 2025 effort conducted alongside the Diabetes Safety Organisation focused on diabetic drivers and the recent ‘Under Pressure’ initiative for Tyre Safety Month.

Under the deal, On Air Media Group’s production strength and wide broadcast reach will amplify TyreSafe’s technical knowledge, ensuring that critical warnings about tyre maintenance reach national and local radio listeners. The collaboration specifically targets private motorists, motorcycle riders and commercial fleets, promoting straightforward preventive measures.

Looking ahead, the partners plan to roll out interviews, live segments and campaign-linked features across UK. Future work will also support fleet operators, address seasonal safety concerns and launch regional projects tied to TyreSafe’s yearly schedule of awareness events.

Stuart Lovatt, TyreSafe Chair, said, “We’re delighted to formalise our partnership with On Air Media Group. Their creativity and professionalism have been instrumental in helping us deliver the tyre safety message to millions of listeners across the UK. Radio remains one of the most powerful ways to reach drivers where it matters most – while they’re on the move – and On Air’s ability to make safety messaging engaging and relatable has been invaluable. Together, we’re ensuring more people hear, understand and act on the importance of tyre safety.”

Will Luscombe, Creative Director, On Air Media Group, said, “We’re proud to partner with TyreSafe and support their vital work in promoting road safety. Our team is passionate about using the power of broadcast storytelling to drive meaningful change, and working with TyreSafe has shown how creative, well-targeted radio campaigns can make a real difference. This partnership is about amplifying awareness, inspiring behaviour change and ultimately helping to save lives on UK roads.”

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The Alliance for the Future of Tires (AZuR) has confirmed its participation as a cooperation partner for the tyre material flow for an interactive event on the Digital Product Passport (DPP), scheduled for 16 June 2026 at the Bottrop campus of Ruhr West University of Applied Sciences. With the European Union planning to introduce DPP from 2028, the initiative aims to establish greater transparency, resource conservation and functional material cycles. The upcoming gathering will focus on practical applications and future prospects for industry, trade, recycling and the circular economy.

The European Union has classified tyres as a priority product group under the new Ecodesign Regulation. The digital passport will provide accessible data on a tyre’s entire lifecycle, including material composition, carbon dioxide emissions, repair history, retreading suitability and recycling methods, potentially via QR codes or radio-frequency identification technology on the tyre itself.

Significant potential exists for the tyre recycling sector. Retreaders will be able to quickly assess casing history, mileage and past repairs to determine suitability for retreading. Recyclers will gain improved material transparency regarding ingredients, additives and recycled content, thereby facilitating both mechanical and chemical recycling. Thus, the passport can support longer tyre use and more efficient recovery of valuable raw materials.

AZuR views DPP as a key step towards advancing the tyre circular economy. Several manufacturers are already working on pilot projects, including Michelin’s coordination of a scalable system through the CIRPASS-2 project, standardisation efforts by Bridgestone and Michelin via the Global Data Service Organisation and AZuR partners’ work on radio-frequency identification and digital traceability. The upcoming university event offers companies, researchers and municipalities an early opportunity to address the passport’s requirements and develop practical solutions.

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