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.

HS HYOSUNG ADVANCED MATERIALS has been honoured as a Community Contribution Certified Company for the seventh consecutive year. The recognition was conferred at the 2025 Community Contribution Recognition Day event in Seoul, where the company also received a Minister of Health and Welfare’s Commendation and the highest possible ‘S’ grade. This dual accolade underscores the sustained public value and consistent performance of its social responsibility programmes.

The certification itself is a rigorous evaluation administered by the Ministry of Health and Welfare and the Korea National Council on Social Welfare. It involves a comprehensive review based on ESG Principles, spanning multiple evaluation areas and numerous detailed indicators. In the latest assessment, the company excelled particularly in environmental management, earning recognition for its robust sustainability and carbon-neutral practices. Its diverse community initiatives, which are developed through long-term regional partnerships and extensive employee volunteerism, were also highly commended for building a stable and effective collaborative framework with local communities.

This ongoing commitment has been strategically reinforced following the establishment of the HS Hyosung Group in 2024. Under the new slogan ‘Value, Together’, the company has redefined its approach to social contribution. Its efforts are now organised around three core pillars: providing support for vulnerable groups, fostering the advancement of local communities and culture and promoting eco-friendly initiatives.

H S CHO, Vice Chairman, HS HYOSUNG, said, “Receiving the Minister of Health and Welfare’s Commendation and the highest ‘S’ grade is the result of our longstanding commitment to putting ‘Value, Together’ into action within our communities. We will continue to carry out diverse social contribution initiatives as a responsible company that grows together with local communities.”

Toyo Tires has become a member of the Global Data Service Organisation for Tyres and Automotive Components (GDSO). This international non-profit is dedicated to creating universal data standards for tyres and auto components. Through this collaboration, Toyo Tires will intensify its efforts to establish industry-wide systems for tyre identification and traceability, which are crucial for modern supply chains.

A core component of this initiative involves the use of radio frequency identification (RFID) technology. This wireless system allows for non-contact identification of individual tyres, which significantly improves the accuracy and efficiency of quality assurance and inventory management processes. By building a comprehensive database of its products, Toyo Tires will enhance information reliability across the entire industry.

The data accumulated through RFID will be instrumental in developing high-value-added services, particularly within the company’s solution business such as retreading and maintenance programmes. This strengthens information management throughout a tyre's entire life cycle. Furthermore, this technological adoption supports Toyo Tires' broader commitment to sustainability. By proactively leveraging digital tools like RFID, the company aims to reduce its environmental impact while simultaneously enhancing its corporate value and advancing the development of more sustainable tyres.

Hankook Tire, the exclusive rally-tyre supplier for the FIA World Rally Championship, is all set to provide tyres for all competitors in the championship's dramatic 2025 season finale, Rally Saudi Arabia. Taking place from 25 to 29 November in the Jeddah region, this decisive event marks the WRC's inaugural visit to the country. The rally’s route, centred around the Jeddah Corniche Circuit, comprises approximately 319 kilometres of competitive action across 17 special stages, presenting a completely new challenge for teams and drivers.

This new Middle Eastern challenge demands a tyre capable of mastering a vast spectrum of conditions. The stages combine long, fast desert sections with technically demanding rocky terrain, all subject to sharp temperature swings, blowing sand and unpredictable micro-climates. Hankook will equip the crews with its Dynapro R213, an extreme all-terrain rally tyre engineered specifically for such rough and unpaved surfaces. Available in Hard and Soft compounds, it features a robust casing and a specialised tread pattern to deliver stable grip, crisp steering response and reliable impact absorption at high speeds, all while managing heat buildup for consistent long-stage performance.

The rally also serves as the setting for the championship's climax. The Drivers' Championship will be settled in Jeddah, with Toyota GAZOO Racing's Sébastien Ogier having narrowed the gap to leader Elfyn Evans to just three points after his recent victory in Japan. This sets the stage for a final, high-stakes showdown where tyre strategy and durability will be as critical as outright speed, focusing the global motorsport world on the Saudi desert.

Giti Tire has intensified its AdvanZtech EV Ready initiative with the introduction of the GitiWinterW2, a winter tyre engineered to perform on battery-electric vehicles, hybrids and traditional internal combustion engines. This new product, available for the 2025/26 winter season, is the first winter-specific offering within this specialised tyre line. The range is comprehensive, encompassing 17 different sizes to fit rims from 15 to 20 inches, making it suitable for a wide array of vehicles from the compact Fiat 500e to the Tesla Model 3 and popular SUVs like the Volkswagen Tiguan and Volvo XC60 PHEV. Each tyre is marked with a distinct sidewall logo to guide consumers towards the correct application for their vehicle type.

The development of the GitiWinterW2 focused on achieving a balance of critical performance attributes. Engineers prioritised managing the high torque output of electric vehicles for superior control while simultaneously minimising rolling resistance to help extend driving range. This technical development was accomplished without sacrificing the essential safety and handling characteristics required for winter driving in snow and wet conditions. The manufacturer emphasises that the final product delivers a quiet, comfortable and secure driving experience.

This winter tyre joins the existing summer patterns, the GitiSportS2 and GitiSynergyH2, which were originally launched in August 2024 under the same AdvanZtech EV Ready strategy. All three tyre lines are the result of research and development conducted through Giti's global AdvanZtech system, with significant work carried out at their European Research & Development Centre located in Hannover, Germany.

Fabio Pecci-Boriani, Deputy General Manager – Product Planning PCR and LTR, Giti Tire R&D Centre (Europe), said, “The Giti brand was among the first in the mid-market to introduce an EV ready concept, ensuring maximum flexibility and product clarity for dealers and peace of mind for drivers. As is proven, winter can have an impact on the performance of part-electric and electric vehicles with lower temperatures reducing battery range and immediate torque levels being tricky on slippery roads; the Giti AdvanZtech EV ready GitiWinterW2 goes a long way to addressing these issues.”