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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Continental played a decisive role in the world record achieved by Volkswagen's Mission Efficiency concept vehicle, supplying a specially developed concept tyre. During the drive, the near-production electric vehicle consumed just 7.51 kilowatt-hours per 100 kilometres including charging losses, or 6.89 kWh excluding them. The RID – Rekord-Institut für Deutschland certified the result on 24 August 2026, after a 1,278.36-km journey from Wolfsburg to Vienna under real-world conditions. The trip required only one charging stop and ended with 164 kilometres of remaining range.

The concept tyre achieves a rolling resistance of 4.9 kg per metric tonne, roughly 25 percent below the threshold for the EU tyre label's highest Class A rating. Because about one-fifth of an electric vehicle's propulsion energy is consumed by overcoming tyre rolling resistance, this reduction is a major factor in extending range. Tyres therefore directly influence energy consumption and the distance possible on a single battery charge.

(Photo: Volkswagen AG)

Rolling resistance arises because a tyre deforms each time it contacts the road during every revolution. That deformation draws energy otherwise used for propulsion, and around 20 percent of an electric vehicle's battery energy is spent merely to overcome this effect. Continental's concept tyre builds on the EcoContact 7, a production tyre already known for exceptionally low rolling resistance.

For the record drive, the tyre was modified to Volkswagen's specifications, producing a design that deforms even less as it rolls, cutting energy consumption further and increasing range per charge. Two elements proved especially important. The sidewall follows the same design principle used in the EcoContact 7, delivering stability without raising rolling resistance. Meanwhile, the tread compound was specially tailored to the tyre's other components, working alongside the carcass and tread pattern to minimise energy losses.

(Photo: Volkswagen AG)

An additional advantage came from a new manufacturing process. During production, the initially soft green tyre is hardened in a mould under heat and pressure through vulcanisation, but Continental did not heat it uniformly as in conventional production. Instead, different areas were exposed to different temperatures, with the tread cured differently from the sidewall. This allowed each zone's properties to be optimised more precisely, resulting in even lower rolling resistance for the tread.

Rolling noise also shaped the tyre's development, and its tread pattern was specifically designed to achieve particularly low noise levels. Engineers varied the spacing and angles of the tread blocks so that the noises they generate partially overlap and cancel each other out, following a principle similar to noise-cancelling headphones. For the Mission Efficiency vehicle, this means the tyre improves efficiency while also ensuring a notably quiet driving experience, an aspect of growing importance because tyre noise becomes far more noticeable without an internal combustion engine.

The ID. Polo production car on which the Mission Efficiency is based already comes fitted with Continental's EcoContact 7 as standard, but the record project took the two companies further. Continental developed the tyre in close collaboration with Volkswagen's vehicle and aerodynamics engineers from a very early stage. The collaboration extended into the vehicle's design, with the tyre's colour-accented sidewall incorporating styling elements from the concept.

During the record drive, the vehicle set three benchmarks: the world's most aerodynamic near-production vehicle with a drag coefficient of 0.158, the most efficient four-seat electric vehicle in its class in a single controlled drive and the most economical near-production four-seat electric vehicle on an officially documented long-distance real-world drive. Largely based on production components from the ID. Polo, including its battery and drivetrain, the Mission Efficiency demonstrates the efficiency gains possible through targeted improvements to existing electric-vehicle technologies.

Dr Christian Strübel, Continental’s expert in rolling resistance for passenger-car tyres, said, “The record shows that increasing the range of electric cars does not necessarily require larger batteries. Significant opportunities lie in the successful interaction of all vehicle components. Tyres make a crucial contribution. Together with Volkswagen, we’ve demonstrated what’s possible when vehicle, aerodynamics and tyre development are aligned from the very beginning.”

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Liberty Tire Recycling has announced that its employees, business partners and supporters raised USD 195,000 in 2026 for Blessings in a Backpack, a national nonprofit providing weekend food to school-aged children facing hunger. The announcement coincided with National Childhood Hunger Awareness Day and World Food Day, marking the third consecutive year of the company's partnership with the organisation.

Funds were generated through the Liberty Cares Charity Golf Tournament and contributions from partners. The collaboration originated from employee feedback, as workers expressed a desire to support a cause addressing both children's needs and hunger – two areas Blessings in a Backpack serves.

Thomas Womble, CEO, Liberty, and Charlie Alutto, Chair of the Board, at the 2026 Liberty Cares Charity Golf Tournament.

In late October, employees at five locations – Santa Fe Springs, California; Midlothian, Texas; Minerva, Ohio; Jackson, Georgia; and Portland, Oregon – will pack 6,500 weekend meal bags for local programmes. Additionally, staff companywide will create handwritten notes of encouragement for the bags. Liberty previously raised USD 87,805 in 2024 and USD 132,785 in 2025, bringing its three-year total to over USD 415,000.

Liberty employees in Oregon write notecards for Blessings In A Backpack.

Thomas Womble, CEO, Liberty Tire Recycling, said, “In three years, we have raised over USD 400,000 and packed more than 16,000 food packs for kids in need. This is only possible with the employees at Liberty giving their time and effort to this project, and customers and partners committing their time and resources. Thank you to everyone who made this possible – I am proud to be part of this team.”

Alexis Hartman, Manager of Corporate Partnerships, Midwest, Blessings in a Backpack, said, "Thanks to the generosity of Liberty, their leadership, customers and employees as well as the outings’ donors and sponsors, over USD 195,000 was raised this year to benefit the mission and work of Blessings in a Backpack. We couldn’t be more grateful to the entire Liberty community for the care, compassion and kindness provided year after year to support children in need of our services. Thank you from the bottom of our backpacks!”

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Hankook Tire marked a significant design milestone on 15 October at the Capitol Theatre in Singapore, where the company was honoured during the Red Dot Award 2026 ceremony for Design Concept. The tyre manufacturer celebrated two Best of the Best accolades, with design team members present to represent the winning projects.

The recognition stemmed from the competition’s Design Concept category, where Hankook secured two top honours and four Winner awards. The winning entries, announced in August, included the i-Flex Gen 2, an airless concept tyre, and Medi Buddy, a futuristic medical mobility design. The i-Flex Gen 2 represents an evolution of the company’s airless tire research since 2015, introducing an industry-first circumferential spoke structure that improves low-noise performance and driving stability while enhancing visual appeal for future electric and autonomous vehicles.

Medi Buddy emerged from an industry-academic partnership with Korea Design Membership Plus, a student talent programme managed by the Korea Institute of Design Promotion. Operating under the Mobile AI 2030 theme, the concept combines autonomous driving and artificial intelligence into an interactive smart IV system aimed at engaging hospitalised children, reducing their fear of hospitals and offering emotional comfort.

The award-winning concepts will be displayed in a special exhibition at the Red Dot Design Museum Singapore. The Red Dot Design Award ranks among the world’s three major design honours, alongside Germany’s iF Design Award and the US-based International Design Excellence Awards. Hankook previously became the first Korean company to earn the Red Dot Luminary honour in 2015, followed by the tyre industry’s first iF Gold Award in 2016 and an IDEA Bronze Award in 2017, completing a sweep of the top three global design awards.

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The German Rubber Industry Association (wdk) reported in Frankfurt am Main that used tyre disposal and recycling firms continue to face substantial shortages of used tyres, undermining a secure supply of secondary raw materials essential to a resilient and sustainable circular economy.

According to wdk Technical Director Stephan Rau, roughly 84,000 tonnes of used tyres were unaccounted for last year. These, and potentially far larger volumes, are suspected to have been exported outside the EU for incineration or pyrolysis under dire health and environmental conditions, removing them from German recyclers and the circular economy.

Although the loss rate has edged downward, the association argues that systematically recording waste tyres and their recycling pathways remains the most effective countermeasure. The wdk and allied organisations have urged this approach for years, describing it as easy to implement and capable of significantly strengthening the circular economy, provided political will emerges to support a functioning recycling system.

Rau also cited newly published statistics showing Germany generated 522,000 tonnes of waste tyres in 2025. Of that total, 210,000 tonnes became granules and rubber powder, now nearly triple the amount thermally recycled in the cement industry – a development the wdk called strongly positive, while noting that comprehensive quantity recording could enable substantially more tyres to be recycled.

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