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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TVS Srichakra reported higher revenue and profit for the financial year ended March 31, 2026, supported by stronger operating performance and exceptional gains.

The tyre maker reported standalone revenue from operations of INR 33.9 billion for FY26, compared with INR 30.2 billion a year earlier. Profit before tax rose to INR 1.1 billion  from INR 486.1 million in FY25, while net profit increased to INR 827.1 million from INR 369.6 million.

For the quarter ended March 31, 2026, standalone revenue from operations rose to INR 9.1 billion from INR 7.5 billion in the corresponding period last year. Profit before tax increased to INR 456.2 million from INR 118.4 million, while quarterly net profit rose to INR 346.2 million from INR 105.9 million.

The company recorded an exceptional gain of INR 29. Million m for FY26, compared with an exceptional charge of INR 114 million in the previous year. During the March quarter, exceptional gains stood at INR 8.9 million.

TVS Srichakra said the exceptional items included grant income linked to investment promotion incentives sanctioned by the Government of Tamil Nadu through the State Industries Promotion Corporation of Tamil Nadu. The company also accounted for expenditure related to a voluntary retirement scheme and recognised an incremental obligation arising from the implementation of the Labour Codes.

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Goodyear India reported higher profit for the financial year ended March 31, 2026, supported by an exceptional gain during the period.

The company posted profit before tax of INR 831.6 million for FY26, compared with INR 746.8 million a year earlier. Net profit for the year rose to INR 615 million from INR 551.2 million in FY25. Earnings per share increased to INR 26.66 from INR 23.90.

For the quarter ended March 31, 2026, Goodyear India reported profit before tax of INR 133.3 millon, against INR 333.5 million in the corresponding quarter a year earlier. Quarterly net profit stood at INR 96.9 million, compared with INR 245.3 million in the previous-year period. Earnings per share for the quarter declined to INR 4.20 from INR 10.68.

The company recorded an exceptional item of INR 217.7 million during FY26. In the March quarter, the exceptional item stood at INR 198.3 million.

Goodyear India said the exceptional item was linked to a reassessment of liabilities relating to gratuity and compensated absences under the Labour Codes. The reassessed amount relating to previous periods was reclassified from employee benefits expense to exceptional item in the financial results for the quarter ended March 31, 2026.

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Kumho Tyre UK is set to return to the Road Transport Expo (RTX) 2026, scheduled from 30 June to 2 July at Stoneleigh Park. The company continues to emphasise dependable tyre solutions tailored for United Kingdom fleet operators, reaffirming its commitment to the commercial vehicle sector.

At Stand R37 in Exhibition Hall 1, attendees can examine Kumho’s latest commercial vehicle tyre range, engineered for applications spanning long-haul motorway driving to regional and local delivery routes. The display highlights the regional multi-performance lineup, including the KXA31, KXD31 and KXT31. Designed for mixed-use fleets navigating motorways, A-roads and urban settings, these tyres balance durability, mileage and efficiency to maximise performance across varied routes.

Also on show are the KMA12 and KMD41, developed for mixed service applications where robust construction is vital to maintaining uptime. Engineered for tougher conditions, they offer enhanced durability for demanding environments. Kumho’s RTX presence underscores its ongoing support for fleet operators with high-quality, value-driven solutions focused on performance, longevity and real-world reliability.

Kumho’s TBR sales team and executive management will be available throughout the event to discuss fleet requirements and the company’s growing retailer network. Visitors can enjoy refreshments while learning about the expanding CV portfolio.

Richard Lyons, Managing Director, Kumho Tyre UK, said, “We’re looking forward to returning to RTX and building on the conversations we started last year. It’s a great opportunity to meet with fleets face-to-face, showcase the strength of our CV range and demonstrate the quality and performance that underpins the Kumho brand.”

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Prinx Chengshan has introduced a new line of agricultural tyres at the 2026 Xinjiang International Agricultural Machinery Expo, which opened in Urumqi on 25 May. The Chengshan brand showcased products specifically designed for tractors and combine harvesters, responding to the growing performance demands of large-scale machinery driven by agricultural modernisation.

As tyres play a critical role in equipment efficiency, Prinx Chengshan has developed a full-chain innovation system covering fundamental research, application development and pilot verification. With a newly launched green and intelligent off-the-road tyre plant, the company now offers agricultural tyres that excel in durability and load capacity, providing cutting-edge solutions for global customers.

The Chengshan TX series addresses specific operational needs. The TX600, for tractors, features large tread lugs and flexible sidewalls to ensure stability and comfort during high-speed relocation. The TX700 uses a reinforced carcass and belt structure to handle heavy combined loads without deformation. The TX800 incorporates an R-1W deep tread pattern and wear-resistant compound to withstand sharp stubble, gravel and roots, extending tyre life and lowering costs. For combine harvesters, the TX2000 uses proprietary IF technology to deliver 20 percent higher load ratings at the same pressure, reducing soil compaction and protecting topsoil.

Moving forward, Prinx Chengshan will continue its product plus service strategy, supporting modern agriculture alongside global partners. The company aims to advance green farming practices and contribute to a sustainable future.

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