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 has expanded its strategic footprint by acquiring two locations: Highland Auto in Tennessee and Highland Tire at Sentry Station in Georgia. This marks the company’s first entry into Georgia and adds a fourth Tennessee site, enhancing regional network connectivity.

The move supports Sun Auto’s broader 2026 growth campaign, which includes new operations in Colorado and brings the company’s total presence to 27 states nationwide. Both acquired shops join the Sun Auto Network, gaining access to 24/7 online scheduling, digital vehicle inspections and the company’s Driver Commitment focused on clarity, confidence and customer care.

Each location provides a full range of automotive services, including major tyre brands with a price match guarantee, alignments, brake service, oil changes, batteries, diagnostics and preventative maintenance. Sun Auto now operates over 575 locations nationwide through both acquisitions and new builds.

Chris Tavares, SVP Operations, Sun Auto, said, "Expanding into the Southeast is an important step in strengthening our national footprint and positioning our network for long-term growth. Establishing a presence in Georgia allows us to serve more customers, support our teams with greater regional resources and build stronger continuity across key markets."

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Hankook Tire has formally launched a major national research initiative at its advanced Hankook Technodome facility in Daejeon. The kick-off gathering took place on 4 June to begin work on a project titled ‘Development of Tire Manufacturing Technologies Using Sustainable Materials’, which falls under the Ministry of Climate, Energy and Environment’s 2026 Environmental Technology Development Program.

The core objective of this undertaking is to accelerate South Korea’s transition to a circular economy by deriving high-grade recycled inputs from discarded tyres. Two parallel tracks of research involve creating premium reclaimed materials from waste rubber and establishing manufacturing processes that rely on sustainable components. Hankook Tire has been a driving force in this field since 2023, leading the domestic Tire-to-Tire consortium, and has already brought to market the iON GT, an electric vehicle tyre composed of over 70 percent sustainable content.

Participation in this government-backed programme allows Hankook to broaden its existing private sector work into a larger cooperative framework that includes universities, research bodies and industry partners. The company intends to strengthen its ability to adapt to evolving environmental rules while making its raw material supply chains more resilient. The project consortium brings together 11 entities, with M&B Green Earth acting as the lead institution alongside Kumho Petrochemical, HS Hyosung, Solvay, KRICT, KAIST and several other academic and technical organisations.

Hankook Tire ultimately targets the commercial release of next-generation, low-carbon tyres containing more than 85 percent sustainable materials and capable of cutting carbon emissions by over half. The project will also allow for large-scale validation of the domestic Tire-to-Tire circular model through product demonstrations and integrated performance assessments. Further demonstrating its commitment, the company recently attended the April launch of the Eco-design Forum, where industry players discussed compliance with the EU Ecodesign for Sustainable Products Regulation.

Bonhee Koo, Head of the R&D Innovation Division at Hankook Tire, said, “This national R&D project presents a meaningful opportunity to bring together the expertise of leading industry, academic and research institutions. Through close communication and collaboration among all participating organisations, we will strive to deliver tangible outcomes that contribute to strengthening competitiveness in the global market.”

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American tyre brand General Tire has officially widened its all-terrain product family by unveiling the Grabber AT3 Plus, a new all-season tyre engineered for unpredictable weather and rugged off-road use. The launch addresses the rising popularity of both traditional 4x4 vehicles and the rapidly expanding sport utility vehicle segment, offering a single solution that balances highway driving with trail capability.

When measured against the previous model, the latest Grabber delivers superior snow traction and enhanced wet-road grip thanks to a thoroughly reengineered tread design that visually signals its off-road intentions. Durability remains a priority, as both the compound and tread pattern have been optimised for harsh conditions while still providing precise handling and reduced cabin noise. The tyre is built for year-round use on pavement and dirt, and every available dimension bears the three-peak mountain snowflake symbol, ensuring legal compliance for winter driving across numerous countries.

Upon its release, the Grabber AT3 Plus will be offered in rim diameters ranging from 15 to 22 inches, widths between 195 and 315 millimetres and aspect ratios of 80 down to 40 percent. Certain sizes carry LT identification along with LRD and LRE load ratings, making them suitable for heavy-duty applications, while speed ratings can reach up to 240 kilometres per hour. To achieve its balance of toughness, grip and ride quality, General Tire integrates three proprietary systems: TracGen for loose-surface traction and on-road precision, Comfort Balance for smooth rolling and noise reduction and DuraGen for cut-resistant tread blocks and stone bumpers.

A rugged sidewall with a pronounced shoulder, clear tread markings and logo detailing gives the tyre an assertive appearance that complements modern SUVs and off-road vehicles. Depending on the dimension, the Grabber AT3 Plus earns a C grade for wet braking, a B for noise emissions and most commonly a D for rolling resistance.

Matthias Bartz, Business Development Manager – EMEA, General Tire, said, “Our R&D department has achieved a remarkable feat in further developing the leading Grabber AT3. The Grabber AT3 Plus delivers improvements across all key performance areas – without any compromises.”

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Michelin North America, Inc. is participating once again in a special journey to transport World War II veterans to Normandy, France, in observance of the 82nd anniversary of D-Day. The initiative is carried out in collaboration with the Best Defense Foundation and Delta Air Lines, reflecting a unified effort to preserve the memory of veteran courage and sacrifice through direct, intergenerational experiences rather than solely through historical texts.

A charter flight carrying the veterans departed on 2 June, accompanied by caregivers and volunteers from the partner organisations. Over the course of a nine-day stay, the group will attend commemorative ceremonies and celebrations marking the anniversary. The Best Defense Foundation views the journey as not merely a commemoration but a meaningful opportunity for connection.

This year’s programme again includes students selected through the Best Defense Foundation’s NextGen initiative, who travel alongside the veterans as escorts and witnesses. From Omaha Beach to Pegasus Bridge and Carentan, the students will explore historic sites with those who lived through the events, ensuring that the stories of service members are passed on with authenticity and respect.

The collaboration among Michelin, the Best Defense Foundation and Delta Air Lines began in 2021 and has brought veterans back to France each year since the 78th anniversary in 2022. Michelin’s historic link to D-Day dates to spring 1944, when the 1939 Michelin Guide’s detailed maps were reprinted by Allied commanders to aid navigation in France. The company later produced additional maps for Allied advances, earning formal recognition from Allied Forces, and continues that legacy today through acts of remembrance and return.

Matthew Cabe, President and CEO, Michelin North America, Inc., said, “It is deeply meaningful and humbling for Michelin to stand alongside these veterans in Normandy. Supporting this initiative is one way we demonstrate our deep gratitude for these heroes and ensure the significance of their service is carried forward for generations to come.”

Bob Somers, Senior Vice President – Global Sales, Delta, said, “As we mark the fifth year of the Normandy Legacy Flight, we are reminded that carrying forward a legacy of this magnitude requires partners who share not only our values but a deep sense of purpose and responsibility. We are profoundly grateful for our partnership with Michelin, whose steadfast commitment and collaboration make this mission possible year after year. Together, we are honoured to pay tribute to our nation’s greatest heroes by preserving their legacy, honouring their sacrifice and ensuring their stories endure for generations to come.”

Donnie Edwards, Founder, Best Defense Foundation, said, “Michelin's commitment to this mission goes beyond sponsorship. It is a shared belief that the men and women who fought for our freedom deserve to be remembered, honoured and heard. Because of partners like Michelin, we are able to bring veterans back to the places that shaped history and ensure their stories live on in the people who will carry them forward.”

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