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.

Hankook Tire concluded Round 2 of the 2026 FIA World Rally Championship, Rally Sweden, on 15 February in the Umeå region, where its Winter i*Pike SR10W tyre was put to the ultimate test. As the championship’s sole rally tyre supplier, Hankook equipped all competing crews with this dedicated winter tyre, which features specially engineered ice-rally stud pins. Designed to conquer the most severe icy environments, its asymmetric tread pattern works in tandem with the studs to provide exceptional grip, powerful braking and unwavering high-speed stability on frozen surfaces.

Rally Sweden, first held in 1950, is unique on the calendar as the only event contested entirely on snow and ice. Crews were challenged by 18 special stages covering around 300 kilometres, with competition intensified by speeds reaching up to 200 kmph and rapid temperature fluctuations. These punishing conditions demanded precise car control, reliable tyre traction and steadfast braking performance, making the choice of the Winter i*Pike SR10W critical for success.

Following a fierce contest, Toyota GAZOO Racing’s Elfyn Evans and co-driver Scott Martin claimed victory by a margin of 14.3 seconds, securing their second consecutive win in Sweden. Having also finished second in the season opener at Rallye Monte-Carlo, this result propelled the pairing to the top of the championship standings with 60 points.

The WRC now turns its attention to the formidable Safari Rally Kenya, scheduled for 12 to 15 March 2026 near Naivasha. This event is renowned as one of the most gruelling on the circuit, where crews must navigate extreme heat, mud from heavy rainfall and rapidly changing weather.

Hankook’s commitment to the sport extends beyond event supply. The company continues to refine its high-performance rally technology through intensive collaboration with the FIA and major automotive manufacturers, having completed over 2,000 kilometres of real-vehicle testing across eight countries. With its exclusive tyre supply agreement for all WRC classes covering the 2025 to 2027 seasons, Hankook is reinforcing its premium brand identity and solidifying its leadership in motorsport engineering.

Ecolomondo Corporation, a leading Canadian innovator in sustainable scrap tyre recycling technology, has appointed Craft Capital Management, LLC as its strategic investment banking advisor. This partnership is designed to bolster Ecolomondo’s capital markets strategy, with a focus on financing initiatives and a planned uplisting to the NASDAQ. Securing this position is a key step for the company to obtain the necessary capital for its global expansion.

Eliot Sorella, Ecolomondo’s Executive Chairman, highlighted that Craft Capital’s successful history of providing capital solutions is well-aligned with the company's goal to scale up as a major supplier of recovered carbon black and tyre pyrolysis oil. These materials are produced using Ecolomondo’s proprietary Thermal Decomposition Process. As worldwide demand for circular and sustainable materials grows, this advisory engagement is seen as a vital move to advance the company's market position and support its next growth phase.

Craft Capital, a full-service brokerage firm with over a century of combined financial experience, offers customised investment banking services and connects clients to a broad network of family offices and institutional investors.

Sorella said, “Craft Capital’s proven track record in delivering capital solutions aligns strongly with our strategy to scale as a leading producer of recovered carbon black (rCB) and tyre pyrolysis oil (TPO) using Ecolomondo’s proprietary Thermal Decomposition Process (TDP). As global industries accelerate their transition towards circular and sustainable materials, this engagement is an important step in advancing our capital markets strategy and supporting our next phase of growth.”

Continental is set to make a significant impact at the upcoming Tire Technology Expo in Hannover with a strong presence at the technical conference scheduled for 3 March 2026. The company will kick off the event with a major presentation centred on the evolution of tyre technologies designed to meet the demands of autonomous driving. Dr Andreas Topp, who leads Platform Development and Industrialisation for passenger car tyres at Continental, will illustrate how the vision of autonomous vehicles is transitioning into everyday reality and how the tyre manufacturer is proactively developing innovative solutions to support this shift.

In addition to the opening session, Continental experts will deliver three further presentations, each addressing critical areas of tyre science and environmental regulation. One of these will explore the use of recovered carbon black derived from end-of-life tyres as a filler material. Professor Jorge Lacayo-Pineda, a specialist in materials evaluation, will delve into the complexities of identifying this material within vulcanised rubber compounds. Recovered carbon black, primarily obtained through pyrolysis, represents a milestone as the first industrially scalable filler sourced from discarded tyres. It is not considered a direct substitute for conventional carbon black but rather a distinct category of filler due to its unique composition, which includes carbon residues and a specific thermal background. Professor Lacayo-Pineda will examine the technological and regulatory possibilities that arise from detecting this material in new tyre compounds, focusing on reliable identification techniques such as electron microscopy and molecular spectroscopy.

Another key presentation will broaden the conversation around tyre emissions. Dr Frank Schmerwitz, a senior test engineer specialising in tyre wear, will address the limitations of current discussions that predominantly focus on tyre and road wear particles. He will highlight additional pathways of mass loss that are not captured by conventional measurements. His talk will consider the release of nanoparticles, the persistence of wear residue on road surfaces and the chemical degradation of this material due to environmental factors like oxygen and ultraviolet light, aiming for a more complete scientific picture.

The final presentation will tackle the complexities of modern tyre development in the context of new regulatory frameworks. Dr Pavel Ignatyev, an expert in rubber friction and wear physics, will discuss how the introduction of standardised abrasion limits and measurement methods under the Euro 7 regulation is reshaping innovation in the industry. He will explain the various parameters influencing tyre wear and how they interact with these new requirements. Through simplified models, he intends to demonstrate the intricate nature of tyre wear and outline the collective challenges that remain for the industry, emphasising that a deep understanding of these dynamics is crucial for translating regulatory mandates into effective technological advancements.

Dr Topp said, “The future of self-driving vehicles has begun. We are developing tyre technologies and products that meet the unique technical requirements of these vehicles. This includes topics such as interaction with smart vehicle dynamic controls, optimised fleet operations and tailored solutions for specific use profiles.”

The concluding day of 2026 F1 Pre-Season Testing at the Bahrain International Circuit saw Charles Leclerc set the overall fastest lap of the entire six-day programme. The Ferrari driver delivered a time of 1:31.992s on the C4 compound Pirelli tyres during the final hour of running, improving by eight-tenths of a second on the previous benchmark established by Kimi Antonelli. This performance placed him ahead of Lando Norris in the McLaren, who recorded a 1:32.871s on the C3 tyre. Max Verstappen and George Russell followed, with times of 1:33.109s and 1:33.197s, respectively, both also set on the C3 compound. Notably, none surpassed Leclerc's own leading time on that particular compound, a 1:32.655s. Pierre Gasly rounded out the top times, utilising the softest C5 tyres to post a 1:33.421s.

The C5 compound saw limited use on the final day, employed only by Alpine and Williams for short-run simulations. Aston Martin, despite having the tyre available, opted not to run it and instead completed just six laps on C3s before their session was curtailed. In contrast, teams focused on different aspects of performance. Gabriel Bortoleto and Arvin Lindblad set the pace on the harder C1 and C2 compounds, respectively. The day was also notable for the absence of several drivers, including Fernando Alonso, Lewis Hamilton and Alex Albon, who did not participate in any track action.

Beyond outright speed, teams dedicated significant effort to long-distance evaluation. Gabriel Bortoleto completed 25 laps on the C2 compound for Audi, while Esteban Ocon undertook 24 laps on C1s for Haas. Ocon was also the sole driver to run intermediate tyres, completing four laps to assess front wing behaviour. Over the entire six-day test, a total of 41,366 kilometres were covered across all 11 teams, a distance exceeding the Earth's circumference. The C3 compound proved the most popular, accounting for 61 percent of all laps. In total, 591 sets of slick tyres were utilised throughout the pre-season, with 326 of those deployed in the final three days alone.

Mario Isola, Pirelli’s Motorsport Director, said, “The radical changes introduced to the cars have inevitably shifted the teams’ focus towards power units and aerodynamics rather than tyres over the last few days. The final stages of testing are usually dedicated to optimising the car-tyre package, but it is clear some teams haven’t reached that point yet. Generally speaking, track feedback has been consistent with our simulation expectations. Drivers were able to gain confidence with the entire Pirelli range through both performance trials and long runs, even using the C4 and C5 compounds which aren’t particularly suited to a circuit like Sakhir.

“Mechanical resistance appeared strong across all options, with no signs of graining or blistering. Degradation levels are almost certainly higher now than what we expect for the Bahrain race, when temperatures will be lower and cars more developed. A central theme this season will certainly be balancing temperatures between the axles, especially ahead of the first race in Melbourne. The lower loads of a street circuit might require more intensive tyre preparation or differentiated tyre blanket temperatures, particularly in qualifying. In any case, it will be interesting to discover in Australia how much teams have been ‘sandbagging’ their engine power to avoid showing their hand. We only have to wait a couple of weeks to see the true pecking order.”