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.

The European Commission’s Industrial Action Plan for the automotive sector included plans to publish Guidance on in-vehicle data alongside the implementation of the Data Act. In response, the European Tyre and Rubber Manufacturers’ Association (ETRMA), alongside other automotive industry groups, has developed an Automotive Sector Interpretation Guide of the Data Act to foster a common understanding ahead of the regulation’s application. This joint effort has helped clarify critical definitions and regulatory interfaces while also incorporating essential tyre-specific considerations – a step ETRMA strongly supports.

Despite this progress, the Data Act’s objectives may fall short without additional measures. Key solutions – such as human-machine interface (HMI) access for user consent and digital ID federation to enable secure, efficient data sharing within a unified European data space – require further exploration under sector-specific regulation. ETRMA remains dedicated to ensuring the Data Act’s implementation promotes fair, non-discriminatory access to in-vehicle data. The association will continue pushing for enforceable rules that guarantee real-time, secure and efficient access to relevant data, safeguarding innovation and competitiveness in the automotive and tyre industries.

Bridgestone India, a key subsidiary of the global Bridgestone Group and a leader in tyres and mobility solutions, has expanded its premium retail network with the launch of Bridgestone Select Store – M/s Nashik Tyres and Services. The store was inaugurated by Rajarshi Moitra from Bridgestone India, reinforcing the company’s commitment to delivering innovative, customer-centric tyre retail experiences across the country.

Strategically located in Nashik, the store features modern infrastructure and a premium service setup, positioning it as a one-stop destination for tyres and related services in the region. Recognising that tyres are the sole contact point between a vehicle and the road, Bridgestone emphasises safety, performance and driving confidence through its Select stores. These outlets not only help customers choose the right tyres but also enhance their ownership experience with expert guidance and high-quality services.

With over 900 Select stores nationwide, Bridgestone India has established a premium retail network that goes beyond tyre sales to offer a superior, service-driven experience. The expansion of M/s Nashik Tyres and Services further strengthens Bridgestone’s mission to bring world-class tyre solutions closer to customers, reinforcing its pan-India presence with a focus on innovation and customer satisfaction.

Moitra said, “At Bridgestone India, we are committed to redefining the tyre buying experience through our Select stores. As we continue to expand our footprint and enhance manufacturing capabilities our goal is to provide premium products, services and customer experience.”

Leading global tyre manufacturer NEXEN TIRE has released its 2024/25 Sustainability Report, demonstrating its commitment to transparent ESG disclosure in line with international standards. This year’s report marks a milestone as it includes consolidated performance data from 10 global subsidiaries, enhancing the company’s enterprise-wide sustainability reporting.

In environmental sustainability, NEXEN TIRE has advanced its carbon management strategy by expanding greenhouse gas (GHG) emissions tracking. The company completed a third-party verified inventory covering Scope 1, 2 and all 15 Scope 3 categories, enabling precise identification of carbon hotspots and targeted reduction initiatives. Additionally, the company is accelerating the development of sustainable materials, evaluating 23 renewable and recycled options across 10 categories. Through proprietary technology, NEXEN TIRE now produces tyres containing up to 70 percent sustainable content. Biodiversity efforts have also intensified, with the company adopting TNFD and LEAP frameworks to assess nature-related risks. An ecological survey around its Changnyeong plant identified protected zones and endangered species habitats within a 50-kilometre radius.

On the social front, NEXEN TIRE celebrated a decade without workplace accidents, a result of proactive safety investments, including facility upgrades, risk assessments and 24-hour disaster monitoring. Enhanced fire prevention systems earned the company the Excellence Award at the 1st Safety Culture Innovation Awards.

In governance, NEXEN TIRE strengthened board diversity by appointing a new female independent director, with independent directors now comprising 62.5 percent of the board. The company also expanded its TISAX certification to eight sites, maintaining zero data breaches for three consecutive years. These efforts underscore NEXEN TIRE’s commitment to sustainable and responsible business practices.

John Bosco (Hyeon Suk) Kim, CEO, NEXEN TIRE, said, “As the industry undergoes rapid transformation driven by electrification, AI and sustainability, NEXEN TIRE is embracing ESG leadership as a core pillar of future competitiveness. Our commitment to responsible innovation and transparency will guide us through the next era of sustainable mobility.”

Chinese tyre manufacturer Zhongce Rubber Group Co., Ltd (ZC Rubber) will inject 3.93 billion yuan ($541.3 million) of proceeds from its February initial public offering into wholly owned subsidiaries to fund expansion projects across its production network.

The company’s board approved the deployment of the raised capital through a combination of loans and equity injections to five subsidiaries, according to a regulatory filing. The move represents the full utilisation of net proceeds from ZC Rubber’s IPO, which raised 4.07 billion yuan through the issuance of 87.4 million A-shares at 46.50 yuan each.

Hangzhou Chaoyang Rubber Co Ltd, the group’s largest subsidiary by funding allocation, will receive up to 1.7 billion yuan in loan financing to support its high-performance radial tyre green 5G digital factory project. The facility represents ZC Rubber’s largest single investment among the five planned initiatives.

The company will also provide 850 million yuan to Zhongce Rubber (Tianjin) Co., Ltd. for upgrades in the high-end green tyre industry. At the same time, Zhongce Rubber (Thailand) Co., Ltd. will receive an equivalent amount through a direct capital injection to expand its radial tyre manufacturing capabilities.

Smaller allocations include 352.68 million yuan to Hangzhou Zhongce Qingquan Industrial Co., Ltd. for the production of all-steel radial truck tyres and 180 million yuan to Zhongce Rubber (Jiande) Co., Ltd. for the expansion of its workshop at the JianDe facility.

The funding deployment marks a revision to Zhongce’s original IPO prospectus, which had earmarked 4.85 billion yuan across the five projects. The company has adjusted its plans to align with the actual net proceeds available after deducting underwriting fees and other costs.

Interest rates on subsidiary loans will be benchmarked against comparable bank lending rates, with early repayment options available. The company stated that the funding structure would facilitate project execution while maintaining regulatory compliance through designated account supervision.

Zhongce received approval from China’s securities regulator for its IPO on 26 February, marking the completion of a listing process that positioned the company amongst China’s leading tyre manufacturers seeking to expand production capacity and technological capabilities.

The subsidiary funding initiative received backing from CITIC Securities, the company’s listing sponsor, and external auditors, with both parties indicating no objections to the proposed capital deployment structure.

ZC Rubber's shares have traded on the Shanghai Stock Exchange since its February debut, with the company targeting enhanced production efficiency and market positioning through its post-IPO investment programme.