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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Hankook Tire has secured a new role as the Official Control Tyre Supplier for the 2026–2027 season of the Australian Production Car Endurance Series (APCES), following a partnership with the Australian Racing Drivers’ Club (ARDC). The APCES is a newly launched endurance championship created by the ARDC and Motorsport Australia, designed to continue the country’s legacy of production car racing. The series will feature production-based vehicles competing across eight performance-based classes, labelled X, A1, A2, B1, B2, C, D and E.

Hankook will exclusively supply its Ventus TD (Z221) R-Spec tyres to all participating teams, working alongside official trackside supplier Gary’s Motorsport Tyres. The control tyre format, which equips every competing vehicle with identical tyre specifications and performance, is intended to provide consistent racing conditions throughout the championship. The semi-slick tyres feature an optimised tread pattern and advanced compound technologies, delivering strong dry grip, stable cornering, excellent braking and superior heat resistance even under prolonged high-speed driving.

The championship will begin its opening round at Sydney Motorsport Park on 30 and 31 May, with additional races scheduled at Sandown International Raceway in August and Queensland Raceway in September. The final round is set for March 2027 at Mount Panorama Circuit in Bathurst, New South Wales, as part of the iconic Bathurst 6 Hour endurance race. The overall series champion will be determined at that concluding event.

Hankook has already built a strong reputation in Australian endurance racing as the official tyre supplier for the Bathurst 6 Hour, and it continues to sponsor other local events including the First Focus Radical Cup Australia Series, the Precision National Sports Sedan Series and the Hyper Racer Hankook Australian Drivers’ Championship. Moving forward, the company plans to strengthen its global premium brand position by using racing data from extreme motorsports conditions, combined with its global innovation R&D infrastructure, to develop ultra-high-performance tyre technologies.

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Bridgestone Corporation has extended its legacy of excellence with General Motors by securing a 2025 Supplier of the Year award, marking the company’s 11th consecutive win and 24th overall. The honour was announced during GM’s 34th annual awards ceremony in Austin, Texas. Out of a vast network exceeding 20,000 suppliers, Bridgestone emerged as one of only 103 companies across 14 countries to receive this distinction.

A global cross-functional team at General Motors determines the winners based on performance across key categories such as safety, innovation and resilience. The evaluation process considered each organisation’s results throughout 2025 alongside their alignment with GM’s fundamental values and ambitious future objectives. This rigorous selection method highlights the importance of consistent execution and shared strategic vision.

The recognition directly supports Bridgestone’s internal E8 Commitment, an ethos built around eight values beginning with the letter E, including Ecology and Extension. By crafting innovative tire solutions for GM, the Japanese company effectively advances its pledges on both ecological responsibility and technological extension. This synergy between corporate values and customer recognition reinforces Bridgestone’s position as a reliable partner.

David Colletti, President of Consumer Original Equipment Tires, North America, Bridgestone Americas Tire Operations, said, “This recognition reflects the strong relationship between Bridgestone and GM. Together, our shared dedication to innovation, quality and performance continues to fuel long-term success.”

Shilpan Amin, Senior Vice President, Global Chief Procurement and Supply Chain Officer, General Motors, said, “Supplier of the Year is one of those key moments our whole team looks forward to every year because it highlights the partnerships behind every vehicle we build. The results our suppliers deliver throughout the entire product development cycle are central to our ability to deliver world-class vehicles to our customers. When our suppliers, such as Bridgestone, lean in with us on new technology and flawless execution, we can move faster, compete harder and unlock more value across the entire supply chain.”

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Tyres Europe has joined a broad alliance of European industry associations urging the European Union to strengthen its trade defence policy. The coalition warns that unfair trade practices, combined with structural overcapacity and state-led market distortions worldwide, are intensifying pressure on local manufacturers. European producers must contend with high energy costs, strict environmental rules and complex regulations, placing them at a clear disadvantage compared to rivals benefiting from less transparent conditions.

The signatories have made clear that they do not seek protection from competition itself, only fairer conditions under which to compete. They argue that a truly global level playing field is essential to protect Europe’s industrial base, sustain competitiveness and allow EU companies to continue investing, producing and preserving jobs within the continent. Without such balance, the long-term viability of key sectors remains at risk.

As an immediate step, the coalition calls on the European Commission to assign more staff to the trade defence units within DG Trade. According to the statement, these services are severely understaffed in absolute numbers and relative to the EU’s main global partners. This shortage undermines Europe’s ability to respond effectively to foreign trade distortions in a timely manner.

Reinforcing DG Trade’s investigative capacity is therefore presented as a crucial short-term priority. Tyres Europe and the other associations contend that targeted staffing increases would significantly enhance the EU’s resilience against global market imbalances. Such a move, they believe, would help safeguard fair competition without erecting unnecessary barriers to international trade.

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Hankook Tire was conferred with the ‘Excellence in Quality and Delivery’ award during Japanese automaker Honda Motor Co., Ltd.’s ‘2025 Supplier Excellence Award’ ceremony, which took place in Columbus, Ohio, this past April.

Honda annually evaluates suppliers across North America based on criteria such as quality, delivery, value and innovation. Out of 56 honourees this year, Hankook Tire stood out due to its systematic quality management, stable supply capabilities and advanced product development competitiveness.

This latest accolade marks Hankook Tire’s fifth recognition from Honda, following previous wins for ‘Excellence in Value’ in 2016 and 2020, and ‘Excellence in Delivery/Value’ in 2018 and 2023. Since establishing a partnership with Honda in 2013, Hankook Tire supplies original equipment tyres for key SUV models including the CR-V, HR-V, Pilot and Passport, as well as global sedans like the Accord and Civic.

Building on this recognition, the tyre manufacturer aims to deepen its collaboration with Honda and expand its presence as a premier global brand in North America. Leveraging its integrated quality and technology system – supported by the Technoplex headquarters, Hankook Technodome R&D center and Hankook Technoring test track – the company continues to serve over 50 global automakers and plans to further enhance its AI-driven quality management through sustained R&D investment.

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