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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Ironman Tires, a brand owned by Hercules Tire and Rubber Company (HTR), a wholly owned subsidiary of American Tire Distributors, has unveiled the iMOVE Sport G2, a next generation all season ultra-high-performance tyre crafted for modern sport sedans, performance crossovers and select electric vehicles. This launch responds directly to shifting demands in the automotive market.

Building on the original iMOVE Gen2 A/S, the new model features an advanced tread compound, a refined tread pattern and better durability. It offers confident traction on both dry and wet roads, extended tread life and a quieter, more comfortable ride. Priced competitively, it helps dealers gain ground in the rapidly growing Tier 4 performance tyre segment. The asymmetrical tread layout balances precision handling with daily comfort, using large outer shoulder blocks for cornering stability and a continuous centre rib for straight line control. Strategically placed 3D siping and angled grooves push water away from the contact patch to improve wet and light snow traction, while a variable pitch tread sequence cuts road noise for commutes or long trips.

A new generation rubber compound reduces heat buildup and extends tread life by managing frictional heat and optimising rubber density, which also boosts fuel efficiency. The tyre is EV ready, designed to handle the higher torque and weight of electric vehicles. Available in 17 sizes for 18- to 21-inch rim diameters, 16 sizes will arrive by early May, with the first eight ready now. Several emerging sizes new to the Ironman lineup give dealers fresh sales opportunities.

Competitive pricing and dedicated merchandising support help dealers grow their share in the value-oriented performance tyre segment while maintaining strong inventory and fill rates. The iMOVE Sport G2 comes with a 5-year limited protection policy covering workmanship and materials, road hazard protection and a 50,000-mile (approximately 80,467-km) warranty.

Keith Calcagno, Chief Strategy Officer, Proprietary Brands, American Tire Distributors, said, “The ultra‑high‑performance tyre market has evolved rapidly as vehicles become more powerful and more refined and as demand grows for tyres that can meet the unique requirements of electric vehicles. The iMOVE Sport G2 delivers the performance drivers expect while helping dealers boost inventory flexibility and capture more market share.”

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GRP Ltd, a leading manufacturer of reclaimed rubber, engineering plastics and repurposed polyolefins, has announced the retirement of Virendra Rathod, President of Marketing and Business Development, effective 31 March 2026. Following his retirement, Rathod will no longer be part of the company’s senior management personnel, said the company in its BSE filing.

During a board meeting held on 27 March 2026, the directors formally took note of Rathod’s retirement and recorded their appreciation for his valuable contributions throughout his service with GRP Ltd. His departure marks the conclusion of a significant chapter in the company’s marketing and business development functions.

In a separate leadership change, Jyoti Sancheti has resigned from her role as Company Secretary and Compliance Officer, effective from the close of business on 7 April 2026 to pursue external opportunities. Consequently, she will also step down from additional responsibilities, including Compliance Officer under the SEBI Prohibition of Insider Trading Regulations, Nodal Officer under IEPF rules and the authorised person for determining event materiality and stock exchange disclosures under SEBI Listing Regulations.

GRP Ltd has confirmed that the process to appoint a new Company Secretary is underway and will be completed within the prescribed timeframe.

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Niutech Environment Technology Corporation (Niutech), a China-based company specialising in continuous pyrolysis technology for recycling waste tyres, plastics and oil sludge, marked a major milestone on 24 March 2026 as its majority owned subsidiary, Shandong Hesheng Environment Technology Co., Ltd., broke ground on a significant expansion. This project will add 100,000 tonnes of annual tyre pyrolysis capacity, raising Hesheng’s total processing volume from 60,000 to 160,000 tonnes per year. With this increase, Hesheng becomes the world’s largest operation for collecting, processing and comprehensively utilising scrap tyres through pyrolysis technology.

At the heart of this expansion is Niutech’s latest generation of high capacity, continuous intelligent pyrolysis equipment, which delivers better performance in per unit output, system reliability and automation compared to conventional designs. These improvements are expected to reduce operating costs per tonne and strengthen the overall financial viability of the project. Solving the challenge of large scale, uninterrupted commercial pyrolysis has long been a central goal for the industry. This project proves Niutech’s progress not only in advanced equipment development but also in making continuous pyrolysis practical for widespread industrial use.

On the product quality side, Hesheng has drawn on Niutech’s research capabilities to steadily improve the consistency and performance of its pyrolytic outputs. The tyre derived oil has already earned international certifications, giving it access to demanding global markets. At the same time, through ongoing technical innovation, the pyrolysis carbon black is being upgraded towards standardised, higher value applications. These efforts directly address customer needs for uniform quality, reliable handling and strong application specific performance.

With the circular economy gaining speed worldwide, major tyre producers, chemical companies and material buyers are seeking greater volumes of high-grade pyrolysis oil and carbon black. Once the expanded facility is online, Hesheng will be equipped to meet that demand with stable, large-scale supply of dependable recycled materials. Niutech has also stated that it will continue using its public company strengths in technology and capital to drive further equipment upgrades and broader deployment of pyrolysis systems, supporting global waste tyre recycling and low carbon development.

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Sun Auto Network has expanded its footprint in Southern Indiana and the Greater Louisville market with Carmerica in Sellersburg, Indiana, officially becoming part of the network on 6 April 2026. This integration strengthens Sun Auto’s regional presence while bringing new resources to the local shop. Carmerica will retain its full range of automotive services, including tyre replacement, alignments, brake work, oil changes and preventative maintenance, ensuring that loyal customers continue receiving the same trusted care.

Under Sun Auto’s guidance, Carmerica now benefits from enhanced tools such as round the clock online appointment scheduling and digital vehicle inspections. These additions are backed by Sun Auto’s Driver Commitment, which emphasises clarity, confidence and genuine customer care. The acquisition reflects Sun Auto’s broader growth strategy of partnering with established operators in markets with strong long-term potential and easy customer access.

With over 575 locations nationwide, Sun Auto Network stands as one of the largest independent tyre and automotive service platforms in the country. By combining trusted local brands like Carmerica with the scale and support of a national organisation, Sun Auto continues to build a network rooted in both community reputation and operational excellence.

Rob Kingery, Regional Vice President, said, "This acquisition reflects a disciplined approach to expanding in high-opportunity regional markets where we can build density and deliver a consistent, high-quality experience. Sellersburg helps us deepen our presence in Southern Indiana and better support drivers throughout the Greater Louisville area."

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