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.

Himadri Speciality Chemical Ltd reported a sharp rise in profit for the quarter and nine months ended 31 December 2025, supported by margin expansion and accelerating investment across speciality carbon black capacity, export infrastructure and downstream materials.

The Kolkata-based speciality chemicals group said profit after tax for the nine months rose to INR 5.6 billion, exceeding the full-year profit recorded in FY25. Earnings before interest, tax, depreciation and amortisation increased to INR 7.3 billion, reflecting stronger operating leverage and a shift towards higher value-added products, despite softer revenue.

Revenue for the nine-month period stood at INR 33 billion, while total sales volumes increased by about three percent year on year to 428,572 tonnes. The company said its product mix remained focused on speciality and application-specific offerings, supporting profitability amid market volatility.

For the December quarter, consolidated EBITDA rose about 12 percent year on year to INR 2.5 billion, while profit after tax increased 36 percent to INR 1.9 billion, underlining continued margin improvement.

Investment-led expansion remains central to Himadri’s growth strategy. During the quarter, the company commenced trial production at its brownfield speciality carbon black expansion project at Mahistikry. Once fully operational, the project will increase total speciality carbon black capacity to 130,000 tonnes per annum, positioning Mahistikry as the world’s largest single-site facility for speciality carbon black. The project involves an estimated capital expenditure of INR 2.2 billion and is aimed at premium applications including plastics, inks, coatings and other niche segments.

Himadri also commissioned a high-temperature liquid coal tar pitch terminal at New Mangalore Port, creating a second export corridor alongside Haldia on India’s eastern coast. During the quarter, the company executed its first export shipment of 3,600 tonnes of liquid pitch to the Middle East. Management said the new terminal enhances logistics flexibility, reduces concentration risk and supports export-led growth in coal tar derivatives.

Beyond core expansions, the company continues to deploy capital across multiple growth platforms funded largely through internal accruals. These include forward integration into speciality chemicals such as anthraquinone and carbazole, with planned capital expenditure of INR 1.2 billion, as well as phased investments in lithium-ion battery materials, including a lithium iron phosphate cathode active material plant targeted for commissioning from FY27.

During the quarter ended 31 December 2025, upon receipt of INR 2.4 billion in balance consideration from promoters, Himadri allotted one crore equity shares to the promoters. Following the allotment, promoter shareholding increased to 52.5 per cent.

Commenting on the performance, Anurag Choudhary, Chairman and Managing Director, said the results reflected disciplined execution, operational efficiency and steady progress on strategic investments. He said the commissioning of new capacities marks the beginning of the company’s next phase of growth.

In a major step to advance its global manufacturing footprint, China’s Triangle Tyre has unveiled plans for a new facility in Cambodia. The company will invest CNY 3,219 billion (approximately USD 462 million) to construct a tyre plant in Svay Rieng Province, with construction slated to commence in March 2026. This project represents a cornerstone of the firm’s international expansion strategy and a deepening engagement with the Belt and Road Initiative.

The future facility is designed to produce six million high-performance passenger car tyres and one million commercial vehicle tyres annually. It will employ proprietary manufacturing technologies developed by Triangle Tyre. Output from the Cambodian plant is primarily destined for key international markets, including North America, Europe, the Middle East, Africa and Southeast Asia.

Establishing a local, wholly-owned subsidiary will facilitate the project's implementation and ongoing operations. Company officials position the investment as a strategic move to optimize global supply chain and sales networks while enhancing overall market competitiveness. Financial projections indicate the project is expected to generate average annual revenues of approximately CNY 2,585 billion (approximately USD 371 million) upon reaching full production, with an estimated investment return rate of 15.1 percent.

This overseas capacity expansion is viewed as a direct response to China’s ‘Go Global’ policy. It aims to secure new market opportunities and sustainable profit growth, thereby strengthening the company’s position for long-term development in the global tyre industry.

Hankook Tire commences its second year as the exclusive tyre supplier for all classes of the FIA World Rally Championship (WRC), beginning with the iconic Rallye Monte-Carlo from 22 to 25 January. This 94th edition of the legendary event, covering 339 kilometres across 17 special stages in Monaco and France, is renowned for its unpredictable Alpine conditions. The challenge of rapidly changing surfaces, from tarmac to snow and ice, makes tire selection and performance absolutely critical to competitive success.

For this demanding opener, Hankook will provide its advanced Ventus Z215 tarmac tyre, engineered for precise handling and cornering stability on dry roads. To tackle winter conditions, the company will supply its Winter i*cept SR20, available in both studded and non-studded versions to ensure exceptional traction and control on snow and ice. These products incorporate the brand's latest motorsport technology, developed in collaboration with participating manufacturers to meet the championship's rigorous demands.

Beyond the technical partnership, Hankook plans to enhance its fan engagement throughout the 2026 season. Initiatives include operating ‘Brand World’ marketing booths at service parks for events like the Croatia Rally and Vodafone Rally de Portugal, alongside hosting ‘Stage Hospitality’ at select regional rallies. These efforts are designed to offer unique brand experiences to spectators and partners, solidifying Hankook's premium global image. The company will also leverage its official digital channels to share real-time updates and rally content with a worldwide audience.

The 2026 WRC calendar comprises 14 rounds spanning Europe, Africa, South America and Asia. Having established its technological leadership since becoming the exclusive supplier in 2025, Hankook aims to build on its proven record of consistent performance under extreme conditions, supporting another fiercely competitive championship.

Continental has enhanced its gravel range with the introduction of the Terra Adventure Graphite-Reflex, a tyre engineered for visibility and extended exploration. This new model incorporates a Graphite Reflective sidewall strip, certified to the R88 standard, to dramatically improve rider visibility during low-light and night-time riding. This key safety feature empowers cyclists to venture further with confidence, bridging the gap between gravel and cross-country mountain biking without compromising performance.

The tyre builds on a foundation of proven off-road technology, featuring a fast-rolling, open tread pattern derived from Continental's mountain bike expertise. This design ensures reliable traction across diverse surfaces, from soft soil to hardpack. Reinforced shoulder knobs provide secure cornering, while a specific 3-3-4 centre stud arrangement offers stability under braking and smooth handling over mixed terrain. Underpinning this capability is Continental's Grip Compound and protective Trail Casing, which work in concert to deliver durable, all-condition performance.

Fully tubeless-ready and hookless rim compatible, the Terra Adventure Graphite-Reflex is available in multiple widths to suit different riding preferences. Ranging from a speed-oriented 45 mm option to a plush 55 mm version, each tyre is constructed to offer long-distance durability and consistent control, making it a versatile choice for riders who demand both safety and uncompromising capability on their adventures.

Alexander Haenke, MTB and Gravel Product Manager, Continental Tires, said, “With the new Terra Adventure Graphite-Reflex, we’re expanding our gravel tyre portfolio for riders who want to venture further with greater confidence. By integrating R88-certified Graphite-Reflex, we’re improving low-light visibility and offering riders extra peace of mind on extended or unpredictable routes. Whether you’re tackling dark-season gravel rides or pushing through late-night bikepacking miles, Terra Adventure Graphite-Reflex adds a meaningful safety advantage without compromising style or performance. At Continental, we’re dedicated to creating products that align with every rider’s adventure – and with this new addition, the journey can continue long after the sun goes down.”