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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JK Tyre & Industries has approved a phased capacity expansion plan involving an investment of INR 49.8 bllion to strengthen its presence in the Truck and Bus Radial (TBR) and Passenger Car Radial (PCR) tyre segments.

The company said its board of directors, at a meeting held on May 26, approved the expansion of TBR production at its Chennai Tyre Plant (CTP) and Vikrant Tyre Plant (VTP), along with PCR capacity expansion at the Chennai facility.

JK Tyre currently has an installed TBR and PCR capacity of 21 million tyres per annum, including capacities under implementation, with utilisation levels running at over 90 percent. The proposed expansion will increase overall capacity by 24 percent and is scheduled to be completed by FY30.

The investment will be undertaken in phases and financed through a combination of internal accruals and debt, the company said in its regulatory filing.

According to JK Tyre, the expansion is driven by robust demand across tyre categories in the Indian market and the need to maintain and strengthen its market presence.

The announcement comes alongside the company’s strong FY26 performance, with JK Tyre reporting record revenues and profitability amid rising domestic demand and higher sales volumes.

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Continental has introduced an addition to its retread product family with the launch of the ContiTread HDR 5, a regional retread designed to support fleet operations through enhanced durability and dependable performance. The new retread focuses on delivering confident handling, reliable traction and an extended service life for vehicles operating on regional routes.

The ContiTread HDR 5 employs a five‑rib tread pattern intended to provide predictable control, stability and even wear, particularly on routes involving frequent stops, sharp turns and mixed road surfaces. Its open shoulder design improves grip across various weather and road conditions, ensuring real‑world reliability while preserving both durability and overall mileage.

Developed to balance toughness with performance, the retread helps fleets maximise value from each retread cycle. Available widths include 210, 220, 230 and 240, all featuring a tread depth of 26/32 inch, offering flexible fitment for a range of regional truck applications.

Shaun Uys, VP of Sales and Marketing, Truck Tire RE USA, said, “Regional fleets need tyres that perform consistently across a wide range of conditions. The ContiTread HDR 5 was engineered to provide predictable handling, dependable traction and the durability fleets rely on to keep vehicles moving and costs under control.”

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Michelin’s Center for Sustainable Materials, located at the Michelin Innovation Park – Cataroux in Clermont-Ferrand, has entered into a strategic partnership with Syntetica, a leading European deeptech startup. The collaboration aims to fast-track the industrial deployment of an innovative nylon recycling process, reinforcing the circular economy.

Under the agreement, Syntetica will integrate its proprietary chemical recycling method into a secure, purpose-built industrial environment at the Center. This marks the first time that nylon-rich mixed textiles can be recycled on an industrial scale. The initiative combines more than 130 years of Michelin’s material science leadership with Syntetica’s advanced low-temperature chemical process.

The global textile industry recycles less than one percent of its waste, largely because most technical garments contain mixed synthetic fibres that defy conventional recycling methods. Syntetica’s technology directly processes such materials without prior sorting, yielding high-purity Nylon 6 and Nylon 6.6 suitable for textile, automotive and industrial uses. The pilot at the Center will initially recycle several tonnes of textile waste, with a planned scale-up towards industrial volumes by 2027.

Both organisations share the belief that industry must drive the transition to sustainability. The project aligns with Europe’s regulatory push, including mandatory textile separation from 2025 and stricter recycled content rules from 2027. Beyond nylon, the pilot represents the first step in Syntetica’s broader green chemistry platform, which aims to expand to other polymers and pioneer a new generation of circular industrial solutions.

Marco Bertone Co-Founder & CEO, Syntetica, said, “Installing our pilot at the Center for Sustainable Materials marks a decisive milestone for Syntetica. The industrial expertise and operational rigour made available by Michelin are a key lever to scale our technology to full industrialisation.”

Patrice Kéfalas Director, Center des Matériaux Durables, said, “The Center for Sustainable Materials was designed to support this kind of breakthrough technology towards industrial scale. The collaboration with Syntetica illustrates our ambition to put Michelin’s industrial experience in service of concrete solutions to accelerate materials circularity.”

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Scandinavian Enviro Systems AB (publ) has taken a significant step forward in its Nordic expansion by submitting an environmental permit application for its first wholly owned, full-scale pyrolysis plant in the region. The company has also secured an exclusive option to purchase the property where the facility is intended to be located.

Designed to process over 70,000 tonnes of end-of-life tyres annually, the proposed plant represents a core pillar of Enviro’s long-term strategy focused on wholly owned facilities. The permit submission and property option mark continued execution of the company’s industrial scale-up, supported by constructive dialogue with relevant authorities and stakeholders. Preliminary feedback from regulators could arrive before the end of the second quarter of 2026.

While the property option allows Enviro to reserve the site ahead of a final investment decision, the planned establishment remains conditional on receiving the necessary environmental approvals, a final investment decision and other standard project requirements.

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