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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The ApexTire2025 China Tire Awards took place in Tianjin on 17 March 2026, serving as a premier annual recognition event for the nation’s tyre industry. This year’s programme was structured around key areas including top 10 tyre brands, corporate honours, product accolades and technology innovation awards, showcasing advancements in brand development, product refinement, technical innovation and sustainable practices.

Founded by Tirechina.net, ApexTire has grown into a distinguished annual platform. Beyond celebrating winners, the 2025 edition provided insight into evolving market competition. With categories for new energy vehicle tyres, high-performance products, safety, off-road use, digital intelligence and ESG management, the awards signalled a shift from isolated metrics towards application suitability, user experience and technical strength.

The official top 10 tyre brands include Michelin, Continental, Bridgestone, Goodyear, Pirelli, Hankook, Yokohama, Dunlop, Sailun and Linglong. Eagle Tire and Doublestar were recognised as leading domestic brands, underscoring the growing influence of Chinese manufacturers.

Product winners spanned multiple segments. Hankook iON evo won for new energy passenger tyres, while Guizhou Tire Green Motion GL278a took the commercial vehicle honour. Maxxis VICTRA SPORT 6 earned sport flagship recognition. Mount Everest Tire’s STATICS S1 won for quiet comfort, Eagle TA01 for off-road and Pirelli P ZERO Corsa for racing. CST MR-C5 was named best value passenger tyre, CST CA186 won for fuel-efficient commercial tyres and Double Coin DC211+ received the safe and wear-resistant award.

Guizhou Tire’s ‘Kunuo Zhixing’ platform won the Technology Innovation Gold Award, while Linglong received the Digital and Intelligent Innovation Gold Award. Michelin China and Triangle Tire were named ESG benchmark enterprises. As vehicle demand grows more specialised, the ApexTire awards offer a key reference for brands and consumers, illustrating how China’s tyre industry is redefining competitiveness.

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Goodyear kicks off its latest European Le Mans Series campaign this weekend in Barcelona, where it remains the sole tyre provider for the LMP2, LMP2 Pro/Am and LMGT3 classes. The season opener at the 4 Hours of Barcelona will see 37 cars racing on Goodyear Racing Eagle tyres at a circuit infamous for pushing both tyre performance and pit strategy to their limits.

What makes the Circuit de Barcelona-Catalunya so demanding is the constant dilemma it creates for team strategists. The common practice of running two stints on a single set of tyres offers valuable time savings by reducing pit stops, but that benefit must be weighed against the gradual loss of grip over many laps. Goodyear anticipates this very calculation will once again shape the outcome of the 4-hour contest.

For the LMGT3 category, the hard compound of the Racing Eagle has been chosen specifically to endure Barcelona’s abrasive surface, a tyre previously proven on tough tracks like São Paulo, Austin and Bahrain in the FIA World Endurance Championship. Meanwhile, LMP2 contenders will run Goodyear’s newest Eagle slick, a specification introduced at Le Castellet last season that now becomes the fixed LMP2 tyre for the full 2026 ELMS season and for the 24 Hours of Le Mans this June.

Beyond the dry tyres, each class is also equipped with a Racing Eagle wet tyre whose tread pattern is designed to channel away water and sustain grip in the rain. Goodyear’s presence this weekend extends far beyond Spain, as its Racing Eagle tyres are also competing at Bristol Motor Speedway in Tennessee across three NASCAR series and at the NHRA Winternationals in Pomona, California.

Stephen Bickley, Goodyear Endurance Program Manager, said, “Barcelona is demanding on tyres, with long, high speed corners and a layout that typically places enormous load on the front-left. That high stress is exactly why we’ve chosen the Eagle Hard compound for LMGT3 this weekend: it can withstand the aggressive wear and degradation, giving teams the confidence to plan their strategies and decide whether double-stinting will deliver the best race performance.”

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Kumho Tire USA has announced a significant contribution to the Tire Industry Association’s Tire Industry Scholarship programme, which operates in collaboration with the University of the Aftermarket Foundation (UAF). Over the next five years, Kumho will donate USD 5,000 annually, resulting in a total pledge of USD 25,000 aimed at supporting the next generation of professionals in the tyre and automotive service sectors.

This scholarship programme provides USD 2,500 awards to students who are pursuing higher education or vocational training directly related to the tyre and automotive service industry. By administering these funds through the University of the Aftermarket Foundation, the programme seeks to build a stronger talent pipeline for the industry through educational support.

Kumho Tire now joins a growing list of member companies from the U.S. Tire Manufacturers Association (USTMA) that have chosen to back this scholarship effort. The programme was first established in November 2025, and Kumho’s commitment reinforces the collective drive to invest in future workforce development.

Ed Cho, CEO, Kumho Tire USA, said, "Our five-year pledge to the TIA Scholarship programme reflects KUMHO's broader commitment to developing and supporting the next generation of tyre industry professionals. We are proud to invest in education and help provide greater opportunities for the future workforce who will shape our industry."

Dick Gust, CEO, Tire Industry Association, said, "Kumho Tire USA's generous commitment is a powerful investment in the future of our industry. By supporting the Tire Industry Scholarship programme, they are helping to build a stronger, more skilled workforce and opening doors for the next generation of industry professionals."

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The Dunlop RoadSmart IV has emerged as the top performer in the latest road tyre test conducted by renowned German publication MOTORRAD. This premium sport touring tyre received high marks for its outstanding handling characteristics and its ability to deliver balanced performance regardless of weather or road surface conditions. The victory adds to Dunlop’s growing list of independent testing successes this year, following a similar overall win for the SportSmart mk4 in an earlier sport tyre comparison.

In the test, MOTORRAD fitted three road focused tyres to a BMW R 1300 GS using the specific sizes of 120/70 R19 at the front and 170/60 R17 at the rear. The RoadSmart IV secured first place overall in the road tyre category, demonstrating class leading wet performance while also tying for the best results in the dry sub category. This achievement marks the second time in half a decade that this particular tyre has claimed top honours in a MOTORRAD test.

Testers were especially impressed by the tyre’s precise dry handling and the clear feedback it provides to the rider. They observed that the RoadSmart IV turns in more easily than its rivals, making it highly recommended for motorcycles that tend to have sluggish steering behaviour. On the BMW test bike, the tyre felt stable rather than unsettled, excelling with high cornering speed, solid grip at maximum lean angle and extremely accurate feedback. In wet conditions, the tyre offered easy manoeuvring ability through fast cornering sequences, with its precise communication clearly signalling the limits in a user-friendly manner.

MOTORRAD summarised the RoadSmart IV as an incredible all-rounder that combines excellent handling with top performance in all conditions, even suggesting that riders on a GS could use it to annoy superbike riders. Thanks to its strong showing on both dry and wet surfaces, the tyre also earned the magazine’s coveted Kauftipp, or purchase recommendation, award.

Roberto Finetti, Marketing Manager, Dunlop Motorcycle Europe, said, “This result for RoadSmart IV reinforces our goal to deliver a perfect balance of outstanding dry performance and exceptional wet grip and precise handling, even after several thousand kilometres. We’re proud to see it recognised once again as a benchmark in the sport touring segment.”

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