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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Cooper Tires is strategically reinforcing its all-season tyre portfolio across passenger cars, sport utility vehicles and light commercial vehicles to meet the growing demand for versatile, year-round driving solutions. This expansion addresses the practical needs of drivers who encounter fluctuating road and weather conditions throughout the year.

Leveraging over a century of tyre manufacturing expertise, the company has broadened its all-season range to deliver reliable, balanced performance and durability tailored for real-world driving across the EMEA region. The enhanced product line now achieves an 89 percent market coverage rate for key European vehicles, ensuring a wide array of suitable options for customers.

The comprehensive portfolio includes the Cooper All-Season for cars and SUVs and the Cooper All-Season Van for light trucks. Both ranges carry the 3PMSF symbol, signifying certified winter capability. The passenger car and SUV line incorporates 3D blading technology for effective braking, an optimised footprint for even wear and extended tread life and a robust carcass for stable handling. This range comprises 84 SKUs, spanning sizes from 14 to 20 inches, and is engineered to be electric vehicle ready.

Specifically developed for commercial use, the Cooper All-Season Van emphasises strength, high mileage and reliability for daily fleet operations. Its deep treads and high-density siping enhance all-season braking, while a reinforced casing supports heavy payloads and demanding work environments. This van-specific line includes 18 SKUs, covering 15- to 17-inch diameters, and is also EV-ready. This strategic investment underscores Cooper Tires’ commitment to delivering its characteristic toughness and straightforward dependability through a versatile all-season offering in the region.

Ben Glesener, Senior Technology Director Product Development Consumer EMEA, said, “Cooper is focused on doing what really matters for drivers – delivering dependable tyres with strong coverage, proven performance and real‑world durability. Backed by more than 100 years of heritage and a renewed investment in product and brand across Europe, our all‑season portfolio is designed to give customers confidence all year round, whatever the road or the season.”

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Goodyear executed its largest-ever endurance operation at the 24 Hours of Le Mans, a feat defined by 188,747 kilometres driven, 377.5 million wheel revolutions, and 44 cars competing across the LMGT3 and LMP2 classes. The Goodyear Racing Eagle tyres delivered relentless performance, supported by over 120 experts and a stock of 8,000 tyres that sustained racing throughout the entire week.

The tyres' exceptional consistency allowed teams to extend stint lengths significantly, saving precious time during pit stops. Most LMGT3 squads completed four stints, or forty laps, before changing rubber, while LMP2 entries routinely managed five. One LMP2 team notably kept a single set for 56 laps, covering 761 kilometres, a distance comparable to travelling from Le Mans to Monaco.

Pace did not diminish despite the high mileage, with the fastest LMGT3 car posting a 100-lap average 1.2 seconds quicker per lap than the previous year, marking the fastest Le Mans of the LMGT3 era. Goodyear’s off-track presence was equally robust, featuring the Goodyear Blimp, a new grandstand, a popular fan activation, a museum collaboration and the introduction of the Goodyear Passerelle.

Ahead of the race, Goodyear reaffirmed its commitment to LMGT3 through a joint announcement with the FIA and ACO, extending its exclusive supply into a fourth season in 2027 with a new tyre composed of 66 percent sustainable materials. The WEC now moves to the 6 Hours of São Paulo on 12 July, though many Le Mans teams will first compete at the European Le Mans Series’ 4 Hours of Imola on 5 July.

Stephen Bickley, Goodyear Endurance Program Manager, said, “When you look at the distances covered without compromising on pace, it underlines the consistency and reliability of our Goodyear Racing Eagle tyres throughout one of the toughest races in the world. It was a special Le Mans for us, felt through our fan activation, partnership renewal and icons old and new at – and above – the circuit.”

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Tegeta Green Planet recently conducted an educational workshop at AlterBridge University, focusing on sustainable development, the Sustainable Development Goals and the Extended Producer Responsibility system. The session provided students with essential knowledge regarding proper waste management and the environmental consequences of daily consumer choices.

Organised in partnership with Shine Energy, the event featured an interactive format that included a discussion segment, an engaging game and a concluding ceremony to recognise the workshop's top performers. This collaborative effort aimed to make the learning process both informative and participatory.

As a pioneering entity in Georgia, Tegeta Green Planet holds official authorisation from the Ministry of Environmental Protection and Agriculture under the EPR framework. The organisation is actively involved in the circular economy by managing the collection, transport and recycling of used tyres, oils and batteries.

Throughout the workshop, students posed inquiries to industry experts and explored how personal actions influence ecological well-being. Attendees received symbolic gifts and certificates for their participation. This initiative is part of a broader educational campaign by the organisation to visit universities and schools throughout Georgia, with the ultimate goal of fostering environmentally conscious citizenship among the youth.

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The Tire Industry Project (TIP) has initiated a pilot study in collaboration with the Greater Paris Sanitation Authority (SIAAP) and the sustainability consultancy ERM to assess the potential of wastewater treatment plants to remove tyre and road wear particles. The research is being conducted at the Valenton wastewater treatment facility near Paris, which ranks as Europe’s second-largest plant and features advanced treatment technologies representative of modern municipal systems. This investigation is scheduled to continue through 2026.

In numerous urban centres globally, stormwater and road runoff are channelled into wastewater systems prior to being discharged into natural waterways. A clearer understanding of how effectively these treatment processes capture TRWP could guide the broader adoption of optimised wastewater management practices. Currently, systematic data quantifying the removal of these particles within treatment plants remains scarce, and this project aims to generate comprehensive, end-to-end evidence to bridge that knowledge deficit.

The study represents TIP’s first real-world application of a priority mitigation strategy identified in its white paper on addressing tire and road wear particles. Over the coming months, researchers will collect and analyse samples from key stages of the Valenton plant’s treatment cycle using advanced pyrolysis gas chromatography-mass spectrometry. The findings are expected to estimate the total removal efficiency across the entire process and will be submitted to a scientific journal, with publication anticipated in early 2027.

The scientific understanding of TRWP is complicated by a lack of standardised methodologies, the variable nature of the particles and their transformation products, and the diverse environmental pathways they traverse. In response, TIP and its member companies have committed to advancing research on quantification, characterisation, environmental migration and potential impacts while collaborating with value-chain stakeholders to support science-based interventions. A 2024 TIP publication reviewed over 50 mitigation measures and prioritised nine based on upstream and downstream potential, employing a prevention, containment and removal framework.

That review also concluded that no single measure has been proven effective specifically for TRWP and that on-ground validation is essential. Moreover, the paper stressed that no universal solution exists, requiring coordinated, large-scale implementation across multiple actors, including the tyre, road construction and automotive sectors, as well as municipal authorities, academia and other public and private entities. The Valenton pilot thus marks TIP’s inaugural effort to test wastewater management’s real-world efficacy, uniting diverse stakeholders from both the public and private sectors in this critical research.

Larisa Kryachkova, Executive Director, TIP, said, “This pilot is an important step in going beyond understanding the subject in the laboratory to field-based evidence. We expect to identify best practices that can be applied far beyond this project, supporting TIP’s ambition to support science-based mitigation.”

Sabrina Guérin, Head of Innovation Department, SIAAP, said, “As the public authority responsible for wastewater treatment in the Paris region, SIAAP is committed to emerging science that protects waterways. By taking part in this TIP study, we will gain an early, science-based view of TRWP movement in solid waste. The findings can help inform and accompany future treatment planning and readiness for upcoming regulatory requirements.”

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