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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Michelin has inaugurated PolMixLab, a new associated research laboratory (LabCom), on 22 April 2026, in collaboration with the National Centre for Scientific Research (CNRS), INSA Lyon, Lyon 1 University and Jean Monnet University. The primary objective of the joint initiative is to invent the rubber of the future by accelerating innovation in polymer materials for multiple industrial uses. The partnership leverages the combined scientific and industrial expertise of all parties to balance performance, durability, and energy efficiency.

Against a backdrop of ecological transition and rising industrial demands, polymer materials like elastomers are a critical research frontier. Their applications span automotive, aeronautics, healthcare and construction, requiring continuous improvements in durability, recyclability, energy sobriety and advanced functionality. To address these challenges, research teams from the Polymer Materials Engineering Laboratory – representing the CNRS, INSA Lyon, Lyon 1 University and Jean Monnet University – have joined forces with Michelin to develop next-generation polymer materials.

Academic and industrial researchers will pursue three main goals over the course of four years. The first involves reducing manufacturing energy for elastomers through digital simulation and improved blend quality. The second focuses on creating new elastomers that exceed current performance limits via innovative structures. The third aims to boost environmental performance by integrating short-loop recycling directly into the polymer formulation phase. The resulting rubbers are intended for strategic applications in mobility, medical devices, aeronautics and high-performance industrial equipment.

PolMixLab represents a structural initiative rooted in Michelin’s 130 years of materials science expertise, spanning chemistry, material transformation, composite design and use-case knowledge from basic research to industrialization. The laboratory marks the 10th active associated research laboratory between the CNRS and Michelin, underscoring a long-term commitment to reducing carbon footprints, extending material lifespans and optimising performance for contemporary industrial and environmental needs.

Mehdi Gmar, Chief Innovation Officer, CNRS, said, “The CNRS is pleased with the creation of PolMixLab, a new associated research laboratory with Michelin, a leading partner with which it has a longstanding relation of trust since the 1990s, one that is structured by a framework-agreement renewed multiple times and nearly forty collaborations each year. This associated research laboratory, which also includes INSA Lyon, Lyon 1 University and Jean Monnet University, marks a new stage in this cooperation by developing polymer materials that offer higher performance, and are more recyclable and sober in energy.”

Christophe Moriceau, VP – Advanced Research, Michelin Group, said, “With PolMixLab, Michelin is strengthening its ability to anticipate and accompany major industrial and environmental issues connected to materials. By combining our unparalleled expertise in materials science and polymer composites with the academic excellence of our partners, we strive to invent rubbers that offer higher performance and are more durable and sober in energy. This research indeed includes the development of materials from biosourced resources, as well as control over material life cycle assessment, with a view to creating innovative solutions offering reduced environmental impact in the service of mobility, along with numerous industrial applications beyond tyres.”

Bruno Lina, President, Lyon 1 University, said, “PolMixLab illustrates the capacity of Lyon 1 University to develop structural research partnerships where scientific excellence meets industrial and environmental issues. By mobilising our expertise in materials science alongside our academic partners and Michelin, we help develop innovative solutions for materials that offer higher performance and are more suitable for the uses of the future.”

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Hankook Tire, the exclusive tyre supplier to the FIA World Rally Championship (WRC), is supporting Round 5 of the 2026 WRC season, Rally Islas Canarias, taking place from 23 to 26 April across Spain’s Canary Islands. For the event, Hankook is providing its Ventus Z215 and Ventus Z210 tarmac rally tyres, with the former engineered for precise handling on abrasive asphalt and the latter designed for wet-road traction and water evacuation.

Celebrating its 50th anniversary in 2026, Rally Islas Canarias returned as an official WRC round for the second consecutive year after joining the calendar for the first time the previous season. Based on Gran Canaria Island, home to the capital Las Palmas, the rally featured 18 special stages covering a competitive distance of 322.61 kilometres, all on asphalt. The opening day’s highlight was the Super Special Stage at the BP Ultimate - Circuito Islas Canarias, where drivers competed in a head-to-head time-attack format.

Regarded as one of the championship’s most iconic tarmac events, the rally is defined by the abrasive, high-grip asphalt and dramatic elevation changes of Gran Canaria’s volcanic terrain. While the consistent surface grip allows circuit-like, high-speed precision driving, it also subjects tyres to intense physical stress. Maintaining grip under high surface temperatures and adapting to unpredictable mountain weather is expected to make tyre performance a decisive factor in the rally’s outcome.

Since the 2025 season, Hankook has served as the exclusive tyre supplier for all WRC classes, reinforcing its role as a key technical partner in global motorsport. By leveraging data from top-tier series such as the ABB FIA Formula E World Championship and the WRC, alongside advanced R&D infrastructure, Hankook continues to drive innovation in high-performance tyre technology while strengthening its global premium brand position.

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Continental is providing comprehensive tyre support to Royal Den Hartogh Logistics, a Dutch family-owned leader in container-based bulk transport for the chemical and food industries. With a history of collaboration exceeding 60 years, the tyre manufacturer now supplies professional tyre management and rolling resistance optimised tyres from the Conti Eco Gen 5 family to the logistics firm’s European fleet of over 900 vehicles.

Peter Rodenburg, Senior Technical Manager at Den Hartogh, has identified safety, costs and the energy transition as the biggest challenges in the company’s Europe wide operations. His assessment highlights the need for more fuel-efficient driving and emission reductions. Meanwhile, Hinnerk Kaiser, Head of Product Development for Bus and Truck Tires at Continental, notes that the fifth generation of the Conti Eco tyre family is specifically designed to address transport sector customer needs and Europe’s dynamic regulatory environment.

The vehicle fleet operates across Europe with the latest generation tyres, supported by Continental’s Pull Point tyre monitoring, breakdown analysis and cost evaluation. Rodenburg has confirmed that the Eco tyre’s optimisation for rolling resistance delivers significant benefits in fuel efficiency and overall performance. The Conti Eco HD 5 has demonstrated its value in both fuel economy and mileage while also performing reliably under varying road and weather conditions.

Rodenburg has reported that after one year of joint fleet monitoring, the first impression of tyre performance and wear is positive. The switch to this tyre, combined with other vehicle optimisations, has yielded measurable cost savings. He states that with the complete package in place, the company has seen significant improvements in average fuel consumption of up to eight percent, making the move to the Conti Eco HD 5 a positive decision.

Looking ahead, Rodenburg acknowledges that the energy transition is taking shape, though the speed of fleet electrification remains uncertain. He emphasises that energy is becoming more expensive and must be used as efficiently as possible, with rolling resistance and air resistance representing losses to be minimised. An optimal tyre, he concludes, brings measurable benefits at every stage of the fleet’s transformation, an area where the rolling resistance optimised Conti Eco Gen 5 excels in contributing to fleet optimisation.

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The Goodyear Tire & Rubber Company has been named the ‘Top Manufacturer of the Year for Summer Tires 2026’ by Auto Bild, one of Europe’s leading automotive publications. The accolade recognises the brand’s outstanding performance across the season’s independent tyre tests, marking the fourth time in five years that Goodyear has secured this top honour. Auto Bild’s award is based on aggregated results from its recent summer tyre comparisons, with Goodyear previously earning the same distinction in 2022, 2023 and 2025.

Goodyear shared the leading position with Hankook Tire after outperforming several industry rivals. Auto Bild editors twice awarded the Eagle F1 Asymmetric 6 an ‘Exemplary’ rating, also naming it Eco Champion and Green Tire of the Year. Those distinctions highlight the tyre’s balanced capabilities in performance, efficiency and sustainability, reinforcing Goodyear’s ability to deliver consistent results in rigorous independent evaluations.

Beyond the flagship award, Goodyear’s summer tyre portfolio achieved multiple podium finishes and top recommendations during the 2026 testing season. Highlights include a first-place result in Mootori’s summer tyre test in Finland, as well as podium wins from Auto Zeitung, ADAC and Sport Auto. From safety-critical braking to efficiency-focused rolling resistance, Goodyear tyres continued to set benchmarks across Europe in independent assessments.

Jan-Piet Van Kesteren, Managing Director EMEA & Chief Sales Officer EMEA Consumer, Goodyear, said, “Being named ‘Top Manufacturer of the Year for Summer Tires’ once again by Auto Bild is a strong recognition of the consistent performance we are delivering across our tyre portfolio. Achieving this award four times in the past five years highlights the strength of our product lineup and our commitment to innovation to ensure that our high-quality tyres meet the evolving needs of drivers. At Goodyear, our ambition is to be #1 in tyres and service, and recognitions like this reinforces the progress we are making towards that goal. We remain focused on developing products that combine performance, safety and sustainability while continuing to deliver value to our customers and partners.”

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