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.

Giti Tire recently hosted an immersive event at its Hefei R&D Centre for its distributor and dealer network, moving far beyond a simple meeting to deliver a hands-on masterclass in future mobility. The core experience was a guided tour through Giti's Innovation Hub, where specialised zones deconstructed the entire tyre development journey. Partners witnessed firsthand the advanced materials, EV-specific engineering and rigorous motorsport-grade testing processes that form the foundation of Giti's collaborations with leading global automakers.

The event physically manifested this innovation with two pivotal showcases. Guests received a rare, hands-on examination of the Giti Flexcore (Airless) Technology, a concept designed for ultimate safety and sustainability by eliminating punctures. Furthermore, they experienced the cutting edge of automotive performance firsthand by entering the cabin of the YANGWANG U9X, a premier electric supercar, engaging directly with its advanced technology and premium construction.

This carefully curated experience was designed to demonstrate how Giti meticulously engineers, challenges and validates ideas long before production. By providing this transparent look into their technological ecosystem, Giti reinforced its role not just as a supplier but as a strategic partner invested in shared growth. The event served to align the network with the brand's forward trajectory, firmly establishing Giti’s commitment to co-shaping the future of mobility through tangible innovation and deepened collaboration.

Michelin has launched a specialised tyre engineered to meet the rigorous demands of modern high-capacity mine and quarry loaders. The MICHELIN Xtra Power L5** 26.5 R25 tyre focuses on delivering durability and enhanced productivity in the most challenging operational environments while also prioritising operator comfort. This new size expands Michelin’s portfolio for loaders, building upon the earlier MICHELIN Xtra Power L5*** 35/65 R33 launched in 2021.

The tyre is built to handle complex applications, from face work and block handling to forestry transport and high-speed operations that impose extreme stress. It responds to the industry trend towards larger vehicles with bigger buckets, offering a substantial load capacity increase of up to 18.5 tonnes – a 23 percent improvement over the previous generation.

Key technical advancements underpin its performance. Engineers developed an innovative structure with a curved design and optimised rubber block support to minimise contact surface stress and boost protection. Reinforcements in the tread and shoulders improve damage resistance, while a larger bead heel enhances torque transmission and helps prevent rim slip, reducing premature wear.

Constructed to endure abrasive soils and aggressive surfaces like stone and rock, the tyre facilitates movement across varied terrain, supporting greater machine productivity. Its new tread design and unique rubber compound contribute to this robustness. Additionally, the design incorporates strengthened crown and protective layers with added metal for superior damage resistance.

For long-term cost efficiency, the tyre is designed to be retreadable, helping fleet managers optimise operational expenses. Operator safety and comfort are further enhanced by its capability to operate at pressures up to 7.5 bars, improving machine stability by 20 percent even during intensive loading cycles.

Clifford de Jager, CES Technical Manager, Beyond Road – Mining, Construction, Material Handling at Michelin, said, “At Michelin, we are always adapting and developing our products to ensure they match the needs of the latest machinery on the market. The MICHELIN Xtra Power L5** 26.5 R25 can handle the most challenging working environments while delivering optimised load capacity and improved torque transmission in a stable, comfortable and safe manner.”

Hankook Tire is all geared up to showcase the prowess of its racing tyres as the ABB FIA Formula E World Championship arrives at the Miami International Autodrome for the 2026 Miami E-Prix. The event, serving as Round 3 of Season 12, marks the series' first World Championship race at this iconic venue, albeit on a shorter, 2.32-kilometre layout crafted for Formula E's distinct performance characteristics. This new circuit configuration around Hard Rock Stadium presents a balanced technical challenge, demanding optimal tyre performance in rapid warm-up, traction on corner exit and stability under heavy regenerative braking.

The temporary nature of the circuit, blending permanent asphalt with repurposed stadium grounds, ensures a weekend of significant track evolution. As the surface rubberises, grip levels will change, particularly in high-load areas, making consistent tyre behaviour a critical factor for success. Teams will rely on predictable temperature build-up and dependable grip to execute qualifying strategies and manage energy efficiency throughout the race. Central to meeting this challenge is Hankook's iON Race tyre, engineered to provide strong adhesion and precise handling while maintaining the crucial low rolling resistance required in the all-electric championship.

This motorsport engagement is a cornerstone of Hankook's premium brand advancement in the region, running parallel to its role as a Founding Partner of the Tomorrow Golf League (TGL). Beyond the track, the Miami event will be a full spectacle, featuring a vibrant festival atmosphere with live entertainment, interactive fan experiences and local food offerings. With the home crowd supporting US-linked teams like Andretti and DS PENSKE, and a new circuit testing every component, the E-Prix is set to be a defining event, powered by the technology within Hankook's tyres.

Manfred Sandbichler, Senior Director, Hankook Motorsport, said, “Miami is the type of venue that immediately raises the technical stakes. With a Formula E layout making its first championship appearance at the Miami International Autodrome, teams arrive without the usual backlog of race-weekend references. That places even greater importance on tyre consistency, traction stability and temperature control. We’re looking forward to seeing the iON Race support close, high-intensity racing as Formula E brings its street-racing character to Miami.”

Pirelli has launched the latest summer tyre for SUVs, the new Scorpion, representing a comprehensive evolution of a line first introduced in 1986 for high-driving-position vehicles like the legendary Lamborghini LM002. Today, the Scorpion name encompasses a broad family of products, including SUV, motorcycle and bicycle tyres. This newest iteration is engineered to deliver safety, comfort and lasting performance, specifically tailored to the demands of modern Sport Utility Vehicles.

The development process leveraged advanced virtual engineering, with Pirelli’s Milan-based R&D team evaluating over 20 technological variants of compounds and tread patterns using proprietary mileage-prediction tools. Driving simulators further optimised handling and dry performance before physical validation, which confirmed significant improvements over the preceding generation. This integrated design approach yielded a tyre that excels across key metrics. It has earned the TÜV institute’s Premium Quality Mark, ranking first in independent dry braking and wet handling tests while also leading in wet braking and straight-line aquaplaning. The entire launch range achieves the top European Class A rating for wet grip, along with Class A/B for acoustic comfort and Class B for rolling resistance, ensuring consistent performance across summer temperatures.

To address the unique challenges of SUVs, such as increased weight and a higher centre of gravity, Pirelli incorporated dedicated technical solutions. The tyre features a reinforced carcass and structure, wider central tread blocks and an optimised profile that promotes uniform pressure distribution and reduces shoulder deformation. This design promotes even wear, making it ideal for heavier vehicles. The updated tread compound, which shares innovative materials with the acclaimed latest-generation Cinturato for saloons, ensures stable performance, improved wet grip and excellent mileage. Furthermore, a new groove geometry in the tread pattern enhances both handling and noise comfort.

The new Scorpion is already offered in 16 sizes ranging from 18 to 22 inches. It incorporates technologies like Elect, which can extend the range of electric and plug-in hybrid vehicles by up to 10 percent through solutions designed for their specific powertrain characteristics. Building on a legacy of over 300 homologations for the Scorpion summer range, this new generation, developed in collaboration with leading car manufacturers, already has more than 40 homologations in progress.