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.

Tolins Tyres Ltd has announced that its wholly owned subsidiary, Terra Rubber Pvt Ltd, has entered into a purchase agreement with Cochin Reclaim and Rubbers Pvt Ltd to acquire plant and machinery as part of its capacity expansion and backward integration strategy.

The agreement, executed on 1 July 2026, involves the purchase of identified plant and machinery from Cochin Reclaim, an unrelated third party. According to the company, the acquisition is intended to strengthen Terra Rubber's manufacturing capabilities through increased capacity and greater backward integration.

Under the terms of the agreement, Terra Rubber will acquire the machinery on an "as-is, where-is" basis. The subsidiary is required to remove the equipment from Cochin Reclaim's premises within 60 days at its own expense. Ownership of each item will transfer only after full payment has been made and the machinery has been physically removed.

Tolins Tyres said the transaction is a routine purchase undertaken in the ordinary course of business and will have no impact on the management or control of the listed company. It added that neither Terra Rubber nor Tolins Tyres holds any shareholding in Cochin Reclaim.

The company also confirmed that the transaction is not a related-party transaction, has been negotiated on an arm's length basis, and that Cochin Reclaim has no relationship with the company's promoter group or board of directors.

Nokian Tyres delivered a sharp improvement in second-quarter profitability as higher sales volumes, stronger pricing and lower manufacturing costs boosted earnings, while the company said it is entering a new phase focused on profitable growth after completing its major investment programme.

Net sales rose 10.6 percent year on year to €379.9 million in the April–June quarter, while operating profit more than doubled to €34.8 million from €14.8 million. Segment operating profit increased 71 percent to €45 million, driven by higher sales and improved manufacturing efficiency.

For the first six months of 2026, revenue increased 7.6 percent to €659.6 million, while segment operating profit climbed to €40.7million, more than five times the €7.8 million reported a year earlier. Operating profit returned to positive territory at €17 million, compared with a loss of €21.1 million in the first half of 2025.

"We delivered a strong quarter in line with our strategic ambition," said Paolo Pompei, President and Chief Executive. "Operating profit increased by 136 percent, driven by higher sales volumes and enhanced pricing."

Passenger car tyres lead recovery

The Passenger Car Tyres business remained the principal growth engine, with quarterly sales increasing 13.9 percent to €235 million, while segment operating profit more than doubled to €35.5 million. Heavy Tyres also returned to growth, posting a 10.4 percent increase in sales, although profitability at retail chain Vianor remained under pressure from cost inflation and seasonal factors.

Chief financial officer Timo Koponen said higher sales volumes remained the largest driver of earnings improvement.

"The Passenger Car Tyres continued their very strong performance also in Q2," he said, adding that the business had benefited from improved pricing, a richer product mix and lower raw material costs.

Management also highlighted six consecutive quarters of positive price and mix development, reflecting its strategy of moving further into premium products and larger rim-size tyres.

Romania becomes a strategic growth engine

Nokian Tyres said its new manufacturing facility in Romania is performing ahead of plan and is playing a key role in rebuilding capacity following the exit from Russia.

Sales in Central and Southern Europe rose 31.3 percent during the quarter, supported by higher production from the Romanian plant. "Everything is developing in this area according to plan," Pompei told analysts, referring to the Romanian factory.

He added that the new manufacturing footprint, together with recently launched products, was enabling the company to regain market share.

"We lost a significant amount of sales when we couldn't leverage our manufacturing facility in Russia at the end of 2022. Now, obviously, we are approaching the market with a new spirit, regaining market share in all the key markets where we believe we can be successful."

The company said contract manufacturing would continue to account for around 10 percent of total production, allowing it to focus internal capacity on strategically important products.

Investment phase winds down

Having invested heavily over recent years to rebuild its manufacturing network, Nokian Tyres is now shifting its attention towards cash generation and returns.

Capital expenditure in the first half fell to €24.5 million, compared with €89.7 million a year earlier. The company expects full-year capital expenditure to remain below €100 million, substantially lower than previous years.

"Following the successful completion of our major investment phase, capital expenditure will be somewhat lower this year than in the previous year," Pompei said.

Koponen said lower capital expenditure and stronger earnings had improved free cash flow, although higher receivables linked to increased sales continued to weigh on working capital. He added that net debt declined by €49m during the quarter while liquidity remained strong.

Premium positioning remains central

Nokian Tyres continues to focus on premium products rather than competing in lower-priced market segments.

The company said all-season tyres continued to outperform the broader market, while its flagship Hakkapeliitta 01 winter tyre had received a positive customer response.

Pompei said the strategy remains centred on strengthening brand equity and improving margins.

"We keep pushing our premium positioning, strengthening our brand through strong marketing investments, new products, and, in particular, better prices," he said.

Outlook unchanged despite uncertainty

Nokian Tyres maintained its full-year guidance, forecasting revenue growth in 2026 and a segment operating margin of 8–10 percent.

While management expects replacement tyre demand to remain broadly stable, it acknowledged that geopolitical tensions, tariffs and raw material price volatility continue to create uncertainty.

"We continue to focus on executing our strategy, strengthening our premium positioning, and improving profitability," Pompei said. "While there is still work ahead, we are on the right path to deliver profitable growth and create long-term value for all our stakeholders."

Yokohama has announced the death of Simon Clarke, its Motorsport and Technical Manager, who was killed in a motorcycle collision on 12 July.

Clarke, who joined Yokohama HPT in 1993, spent more than three decades with the company and became a key member of its UK and European motorsport operations. He played a leading role in numerous domestic and international race series, while also supporting major European motorsport events at the request of Yokohama's global headquarters.

In addition to his motorsport responsibilities, Clarke led tyre development programmes for UK vehicle manufacturers. He also served as chairman of the Motorsport UK Production Tyre Panel and held a certified Claims Adjuster licence.

Yokohama said Clarke was a respected colleague and close friend to many across its UK business, the wider Yokohama organisation and the tyre and motorsport industries.

Outside work, Clarke was described as a devoted family man who enjoyed travelling and spending time with friends.

"Simon will be deeply missed by everyone who had the privilege of knowing him," the company said.

Yokohama extended its condolences to Clarke's family

AZuR partner NEW LIFE has secured official recognition for its educational initiative, NEW LIFE macht Schule (NEW LIFE Makes School), following its inclusion in the national ESD (Education for Sustainable Development) actor index curated by the Federal Ministry of Education and Research and the German UNESCO Commission. This distinction positions the programme among Germany's prominent contributors to Education for Sustainable Development, underscoring its role in cultivating responsible environmental stewardship among younger generations.

Through a complimentary educational offering, the initiative bridges theory and practice by introducing students and trainees to the mechanics of circular economy models, resource efficiency and sustainable corporate conduct. Using tangible examples from mechanical tyre recycling, the programme illustrates how secondary raw materials directly support climate action and resource preservation while also highlighting the commercial and societal advantages inherent in circular systems.

Educators are equipped with an array of no-cost tools, including digital learning modules, project blueprints and vocational case studies tailored for trades such as landscaping, roofing, carpentry, administrative services and soon agriculture. The curriculum prioritises circular economy principles, secondary material flows, climate protection and judicious resource usage, with the aim of nurturing systemic thinking and empowering learners to devise and implement sustainable strategies in their future professions.

For AZuR, this achievement reinforces the conviction that educational institutions play a pivotal role in driving the transition to a circular economy. The recognition not only elevates the profile of NEW LIFE macht Schule among schools and educational bodies but also strengthens AZuR's ongoing commitment to advancing tyre circularity awareness in collaboration with the initiative.