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.

Sri Trang Group has reiterated its dedication to developing the natural rubber sector while protecting the environment and assisting nearby communities. The company recently held the second edition of its 2026 ‘One Sri Trang, One Environment’ initiative at Rubberland Products Company Limited's Mukdahan Branch. Worayan Bunnarat, Governor of Mukdahan, headed a delegation of senior provincial officials from the Provincial Industry, Labour and Public Health Offices. Community leaders and partner networks also participated to learn about the factory's responsible management approach.

Welcoming the delegation were Chalermpop Khanjan, Executive Director of Sri Trang Agro-Industry Public Company Limited, and Mustopa Longsaman, Factory Manager of the Mukdahan branch. A symbolic tree-watering ceremony opened proceedings, underscoring a collective commitment to environmental stewardship. Attendees then explored an exhibition displaying natural rubber innovations spanning the supply chain, from traceability systems to programmes enhancing local quality of life. A standout initiative converts discarded plastic bottles into eco-friendly brooms, creating income for residents. The exhibition also recognised collaborative efforts, backed by provincial authorities, that enabled the branch's TO BE NUMBER ONE Club to attain national distinction as a ‘Silver-Level Model Workplace, Year 1’.

Visitors witnessed production processes directly, with particular attention to odour prevention and control at the source. Measures include a fully enclosed raw material storage building, ozone-based air treatment and a biofilter system for reducing odours. The Mukdahan facility has further refined its environmental monitoring through E-Nose intelligent electronic nose technology, which identifies odours and evaluates their dispersion in real time while allowing continuous data sharing with local communities. Alongside this, the V-Pass Smart Receive digital system screens raw material transport vehicles from the outset, helping avert rubber serum leakage along transportation routes.

Sri Trang Group is confident the event will reinforce trust between the factory and neighbouring communities through transparent disclosure of its operational practices. The Group continues to pursue the facility's progression towards ‘green factory’ status and remains committed to stable, sustainable growth in partnership with rubber farmers, local communities and the environment.

Hankook Tire has secured the title sponsorship of Rally US, Round 11 of the 2027 FIA World Rally Championship, the company announced during a signing ceremony at the 2026 SEMA Show in Las Vegas on 3 November. Representatives from Hankook, the WRC Promoter and the Rally US Organizing Committee attended the event.

The agreement grants Hankook naming rights to the rally, which will be staged as Hankook Rally US under the company’s unified global brand. It represents Hankook’s first title sponsorship of a WRC round.

Hankook Rally US will mark the WRC’s return to the United States after 39 years, since the Olympus Rally in Washington State in 1988. Set for 25–29 August 2027, the event will run on gravel stages across Tennessee and Kentucky, with Knoxville serving as rally headquarters and a ceremonial start in Nashville, which also hosts Hankook’s US headquarters.

Through the sponsorship, Hankook seeks to boost brand awareness in North America, especially in the US, one of the world’s largest automotive markets. The company plans to use exposure across rally stages, the WRC Arena, fan zones and podium backdrops to engage local motorsport fans and strengthen ties with customers and partners. Hankook has supplied tyres exclusively to all WRC classes since the 2025 season and supports more than 70 motorsport competitions worldwide, feeding event data into high-performance tyre research and development.

Rob Williams, Senior Vice President of Hankook Tire North America Headquarters, said, “The WRC’s historic return to the US marks a milestone for Hankook as our first title sponsorship of a WRC round. This partnership will showcase our tyre technology, elevate our premium brand presence and strengthen ties with customers and partners across North America.”

Matt Crews, President and CEO, Rally US, said, “We’re proud to represent America’s return to the World Rally Championship, and especially proud to do it alongside Hankook. Tennessee is my home state, and Hankook is a leader in our automotive industry, with its US headquarters in Nashville and its plant in Clarksville. Hankook Rally US gives them a great platform to showcase their brand to fans here at home and to the WRC’s audience around the world.”

Senator Bill Hagerty said, “Hankook has been a great employer and partner for the Tennessee economy since they decided to move operations to our state more than a decade ago. Seeing them serve as title partner for the FIA World Rally Championship’s return to America, right here in Tennessee, will put our state in front of a global audience, and I couldn’t be more pleased of how far that relationship has come.”

Firestone, a Bridgestone Americas subsidiary, has introduced the Firestone Pathway AS, an all-season touring tyre built for everyday drivers. It comes in 73 sizes, giving it the widest vehicle coverage of any Firestone tyre, and pairs dependable performance and long tread life with value, all backed by a 65,000-mile limited mileage warranty.

Development was shaped heavily by consumer feedback, which pushed improvements in wet traction, tread life and ride comfort over the predecessor. The original plan called for 48 sizes, but 25 more were added mid-development to broaden market reach, helping Firestone cover nearly 77 percent of registered vehicles.

A tread compound engineered for longevity, additional sipes and an optimised see-through void promote even wear and sustained traction. Deep interlocking 3D sipes deliver grip from light snow to dry and wet pavement. Internal testing recorded wet braking gains of 18 percent against the Uniroyal Laredo HT, 11.7 percent against the Firestone All Season and 7.4 percent against the Toyo Extensa AS2, along with shorter dry braking than six leading rivals. Low rolling resistance also supports fuel efficiency in combustion-engine vehicles.

Nationwide availability is underway, with fitments covering popular models such as the Toyota Camry, Toyota RAV4, Subaru Outback, Jeep Grand Cherokee and Chevrolet Equinox.

Leslie Sawyer, Senior Product Design Engineer, Bridgestone Americas, said, "Most drivers want a tyre they can depend on. The Firestone Pathway AS is designed to deliver reliable performance and long-lasting value, giving drivers the confidence they need in everyday driving situations."

Scandinavian Enviro Systems AB (publ) has entered into a conditional service agreement with an international operator that provides transport services to the energy sector. The agreement follows a letter of intent signed by the two parties on 17 March 2026 and marks a further step towards establishing a tyre pyrolysis plant in North America. Using Enviro’s technology, the facility is intended to recycle up to 50,000 tonnes of end-of-life tyres annually.

Under the terms of the agreement, Enviro will produce the technical documentation needed for the plant’s permit applications and prepare an initial design for the entire facility. For these services, the company will receive a fixed fee of USD 2,000,000, corresponding to approximately SEK 19.5 million. The fee is divided between USD 500,000 for permit application work and USD 1,500,000 for plant design, with USD 450,000 payable once the customer decides to proceed and the remainder paid in instalments as various parts of the services are delivered. Additional work and technical support beyond the fixed-fee scope will be invoiced on an ongoing basis.

The start of Enviro’s work depends on the customer making a final decision to proceed with the project. That decision, in turn, requires the customer to have secured a site for the plant and to have entered into binding agreements with buyers of the plant’s two main products, oil and carbon black, covering at least 75 percent of expected production for each product. Should the customer neither decide to proceed by 31 December 2027 nor elect to continue, the agreement will terminate.

The assignment covers two principal deliverables: technical documentation required for environmental, planning and fire safety permit applications and an initial design of the whole plant, including drawings, equipment lists, calculations and technical specifications. The design will serve as the basis for more detailed engineering work before an investment decision. Enviro will also provide technical support during the permit application process for 12 months after delivering the permit documentation. The agreement does not grant any right to use Enviro’s technology to construct or operate the plant, which would require a separate licence agreement.

According to the timetable, the assignment is expected to be completed about seven months after the customer’s decision to proceed, with permit application documentation ready after roughly five months. The customer may terminate the assignment with 30 days’ notice, in which case Enviro is entitled to compensation for work performed and costs already incurred. Enviro remains entitled to compensation regardless of whether permits are granted or the plant is ultimately built. The agreement is described as an important step in Enviro’s strategy to establish technology-based plants internationally, with the design potentially forming the technical basis for a future licence agreement.

Fredrik Aaben, CEO, Enviro, said, “This is an important step towards establishing Enviro’s technology in North America. Together with the Customer, we are now moving from a letter of intent to a binding conditional agreement, and we look forward to designing the plant as soon as the project is ready to proceed.”