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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Pirelli North America has launched its first closed-loop circular recycling initiative, marking a significant step in the company’s broader strategy to increase recycled and bio‑based content in its tyre production. The project has received the Tire Recycling Foundation’s Value Chain Collaboration Award.

The programme recovers scrap tyres generated during Pirelli’s own North American manufacturing process. These materials are sent to Bolder Industries, which applies ISCC PLUS‑certified pyrolysis technology to produce BolderBlack recovered carbon black. Pirelli then reintroduces this material into new tyre production at its North American facilities, partially replacing virgin carbon black. The effort is part of a wider Pirelli plan to expand such industrial ecosystems across the group’s production network, aiming to valorise waste by reintegrating recovered materials into tyre manufacturing.

Beyond the award, the initiative reflects Pirelli’s broader circularity approach, which includes ongoing work to boost recycled and bio‑based material usage. The company targets over 80 percent bio‑based and recycled content in its best‑performing products and forty percent in total production by 2030.

Claudio Zanardo, CEO, Pirelli North America, said, "The Rome plant is one of the most technologically advanced manufacturing facilities in Pirelli. This initiative reflects an approach focused on increasing the use of recovered materials within existing production processes. It is part of a broader effort to gradually integrate raw materials derived from recycled resources into our products while maintaining consistency in performance and quality."

Tony Wibbeler, CEO, Bolder Industries, said, "Our collaboration demonstrates that a traceable, mass-balance approach to tyre-to-tyre circularity is not only achievable, but it's ready to scale inside a premium manufacturing environment, meeting real performance and certification requirements at every step. This is the kind of progress the industry has been working toward for many years."

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Sun Auto Network has expanded its national footprint by acquiring Quality Tire & Auto in Murfreesboro, Tennessee. The transaction officially closed on 11 May, adding the store to the company’s growing portfolio. This acquisition represents Sun Auto’s third location in the state, reinforcing its regional presence along key transportation arteries in Middle Tennessee.

The Murfreesboro acquisition is part of a broader expansion strategy that has added more than 40 new locations this year through both purchases and new builds. Joining the network provides the shop with enhanced operational support, connected technology and customer-focused service tools. These resources are designed to strengthen the in-store customer experience and support long-term market growth across the Southeast.

The Murfreesboro location delivers complete automotive repair and tyre services, featuring leading tyre brands with a price match guarantee. Additional services include alignments, brakes, oil changes, batteries, diagnostics and preventative maintenance. This addition further improves the network’s connectivity throughout the region.

Rob Kingery, Regional Vice President Operations, said, "Tennessee continues to be an important growth market for our network. Adding Quality Tire & Auto allows us to expand Sun Auto's reach while continuing to deliver the trusted service and customer experience drivers expect."

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Sailun Tyre Europe has confirmed a new partnership with the Minrath Gruppe, a major automotive retail and service provider operating in Germany’s Lower Rhine region. The agreement sees the tyre manufacturer supplying its full product range to support Minrath’s growing replacement tyre and complete wheel business.

Minrath operates 14 dealerships and service locations, representing brands including Audi, BYD, Cupra, MG, Seat, Škoda and Volkswagen Commercial Vehicles. Under the partnership, Sailun will provide its Smart Performance tyre solutions for vehicles powered by electric, hybrid, petrol and diesel drivetrains, encompassing summer, winter and all-season tyres. Special attention has been given to the Sailun 4Seasons Ultra, which earned an ‘AutoBild Approved’ rating and a ‘Good’ result in AutoBild’s tyre test for size 225/40 R18.

The collaboration combines Minrath’s multi-brand expertise with Sailun’s tyre technology. Both companies have expressed anticipation for a successful working relationship, aiming to deliver reliable tyre solutions to more customers across the region.

Borusiak Thomas, Managing Director, Autohaus Minrath GmbH & Co. KG, said, “Sailun’s ‘Smart Performance’ concept and the demonstration of the tyres won us over straight away. The value for money, proven quality and wide range that we can pass on to our customers further strengthens our position in the region.”

Harry Wang, General Manager, Sailun Group Europe, said, “We are extremely proud that the quality of our tyres and our brand philosophy have convinced the professionals at Minrath Group.”

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Tegeta Green Planet has launched an educational initiative targeting young people to foster environmental responsibility and awareness. The effort responds to the growing global challenges of sustainable development and environmental protection. By focusing on youth education, the organisation aims to build a foundation for long-term ecological consciousness and active public participation in preserving natural resources.

Operating since 2022, Tegeta Green Planet is among the first entities in Georgia authorised by the Ministry of Environmental Protection and Agriculture under the Extended Producer Responsibility framework. This system is central to modern environmental policy, ensuring full-cycle management of specific waste streams such as used tyres, oils and batteries. The process covers collection, transportation, recycling and further handling aligned with circular economy principles.

As part of this drive, company representatives visited multiple schools in Batumi, a Black Sea coastal city and major tourist hub. Given Batumi’s rapid urbanisation and growing tourism, the need for proper waste management and ecological awareness is especially acute. The interactive sessions included presentations and workshops, teaching students how to handle used tyres, batteries and oils correctly; why such management is vital and how waste can become a resource through circular economy models. Students also learned how individual responsible behaviour affects the environment and the future.

The programme employs a practical format with educational games and activities after presentations, encouraging participants to ask questions and discuss eco-friendly daily choices. Attendees receive symbolic gifts and prizes as motivation. Through this project, Tegeta Green Planet continues its educational work across Georgia, aiming to inform and involve the younger generation in building a cleaner environment. The organisation maintains that environmental care extends beyond waste management to include education and a culture of responsibility for a sustainable future.

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