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.

Following a wave of international acclaim, Pirelli's Cyber Tyre technology continues to redefine automotive safety and connectivity, earning a trio of prestigious awards that underscore its transformative impact. The recognition began in France, where a panel of 20 industry experts at the Automobile Awards honoured the Cyber Tyre with the Safety Award for its ability to enhance vehicle security. This intelligent system employs integrated sensors that communicate with a car’s electronic control unit, delivering real-time road data. This allows vehicle stability systems to react more precisely, improving braking and handling, while also sharing critical information with road infrastructure and other connected vehicles to proactively alert of hazards.

Further acclaim came from Autobest, a European automotive jury representing 32 countries, which granted its SafetyBest 2026 award. This honour celebrates the pioneering development of the Cyber Tyre, a technology deemed of exceptional significance for raising road safety standards following rigorous evaluation. Simultaneously, the global market analysis firm Frost & Sullivan named Pirelli the 2025 Company of the Year in the smart automotive tyre sector. This award highlights Pirelli’s foresight in anticipating industry trends and bringing groundbreaking innovations to market that generate substantial value.

The culmination of two decades of development, Cyber Tyre technology is now moving from concept to real-world application through key automotive partnerships. Following its 2021 debut on the McLaren Artura, the system has been adopted by Audi for a special track model and is fully integrated into the electronics of the Pagani Utopia Roadster. A recently announced agreement with Aston Martin will see the technology featured on future models, with development also expanding into the premium volume market. These implementations are supported by a strategic collaboration with Bosch, ensuring seamless integration with essential vehicle systems like ESP and ABS.

Fundamentally, the Pirelli Cyber Tyre is an integrated hardware and software platform. It collects vital data on tyre pressure, temperature and dynamics, processes this information via proprietary algorithms and communicates instantly with a vehicle’s driver-assistance and stability controls. This elevates safety, efficiency and comfort. Its influence extends beyond the vehicle itself, contributing to smarter infrastructure. A pilot project in Italy’s Apulia region, for example, combines tyre sensor data with camera imagery to create dynamic road maps that monitor pavement conditions and aid maintenance planning. Through Vehicle-to-Everything connectivity, the Cyber Tyre is paving the way for smarter roads and cities, marking a decisive step towards future mobility by transforming the traditional tyre into a connected, intelligent component.

Andrea Casaluci, CEO, Pirelli, said, “These new recognitions confirm that the role of the tyre has changed. For over a century, the technologies inside it have been evolving, but its function has remained the same: conveying forces to the ground to ensure vehicle control. Today, the tyre continues to evolve, and to its primary purpose a new one has been added: thanks to Pirelli Cyber™ Tyre, it has begun to collect and transmit data, processed through algorithms developed by Pirelli. These enable new functionalities, both within vehicle electronics and in relation to road infrastructure, with development potential that looks towards smart cities and autonomous driving. Digitalisation and connectivity are essential pillars for designing future mobility, and our technology – the first of its kind in the tyre world – has embraced them, as confirmed by these awards and by our collaborations with leading car manufacturers.”

Dunlop (company name: Sumitomo Rubber Industries, Ltd.) has integrated chemically recycled circular carbon black into selected passenger car tyres, initiating mass production at its Miyazaki facility in November 2025. This marks the first application of this recycled material within Dunlop's commercial tyre range. The circular carbon black is derived from end-of-life tyres and manufacturing rubber scrap, which are processed through chemical recycling instead of being incinerated for energy. Developed in partnership with Mitsubishi Chemical, this approach transforms waste into a valuable raw material, promoting a circular economy and helping to lower CO₂ emissions.

This innovation was first proven in high-performance settings, having been successfully tested in Dunlop racing tyres during the competitive SUPER GT 2025 season, where it delivered reliable results. The initiative is a key component of Sumitomo Rubber’s overarching TOWANOWA circular economy strategy, which seeks to embed sustainability throughout the tyre lifecycle. This framework connects a sustainable ring, managing five key processes, with a data ring that harnesses information to generate additional value. A central element involves increasing the adoption of sustainable materials to lessen environmental footprint.

Operationally, Sumitomo Rubber provides rubber waste to Mitsubishi Chemical, which then utilises coke oven chemical recycling to produce the circular carbon black. This partnership redirects rubber from combustion to material recovery, enhancing resource efficiency and fostering more sustainable tyre production. Moving forward, the company plans to further develop its TOWANOWA strategy, concentrating on reducing ecological impact, improving tyre safety and performance and expanding service-oriented solutions for sustainable mobility.

Bridgestone India has further strengthened its environmental and educational mission with the opening of a Nature Interpretation Centre. This new facility, an eco-friendly mud structure, is situated within the company’s thriving Butterfly Garden at its Kheda Plant. Designed as a hub for nature-based learning, the Centre provides immersive educational tools such as 3D models and interactive smart boards, alongside a resource area with books and training materials. It will facilitate workshops and community programmes, having already engaged over 70 local students with hands-on conservation experiences.

The surrounding 1.23-acre Butterfly Garden forms a critical habitat, home to over 7,000 native plants that sustain a diverse ecosystem of butterflies, birds, mammals and pollinators. Its ecological impact is demonstrated by a Bombay Natural History Society evaluation, noting a significant rise in biodiversity. Since the garden’s creation, documented butterfly species have grown from 44 to 68 and bird species from 40 to 46, with several birds recorded in the Kheda region for the first time.

Collectively, the garden and centre showcase a successful model for harmonising industrial activity with nature, actively supporting Bridgestone’s commitment to sustainable growth and meaningful community engagement.

JK Tyre & Industries Ltd. has formally completed the merger of its subsidiary, Cavendish Industries Ltd., into its operations, a strategic move that follows Cavendish's acquisition in 2016. At that time, Cavendish was operating at only 30 percent of its manufacturing capacity for various vehicle tyres. Under JK Tyre's stewardship, the subsidiary received extensive managerial, financial and technical support, which facilitated a complete operational turnaround. Through optimised manufacturing processes, capacity utilisation dramatically increased to 95 percent. Additional expansion at the Laksar facility further bolstered its substantial contribution to the company's overall tyre production.

This consolidation is projected to generate significant value by combining operational strengths, achieving greater economies of scale, and creating a more robust and diversified product portfolio. The unified entity will also benefit from an extensive, integrated distribution network. The merger aligns with JK Tyre's enduring strategy of pursuing sustainable growth through both organic projects and strategic acquisitions. Cavendish’s successful integration represents the company’s third major operational turnaround, following previous revitalisations of Vikrant Tyres and JK Tornel Mexico, alongside the establishment of two Greenfield plants.