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, the official tyre supplier to the FIA World Rally Championship (WRC), has confirmed that the 2026 WRC Safari Rally Kenya is scheduled for 12 to 15 March 2026 near Naivasha. This event is recognised as one of the most punishing off-road challenges in the series, set against the backdrop of the demanding African savanna. For this rally, Hankook introduced the new Dynapro R213 soft gravel tyre, featuring an optimised compound for better low-temperature flexibility and superior grip on wet surfaces, while its adaptable structure ensures consistent durability under severe conditions.

Departing from its customary Nairobi start, this year’s competition will concentrate entirely on the harsh gravel terrain surrounding Lake Naivasha in the Great Rift Valley. Drivers will need to quickly adjust to newly designed, high-intensity stages and refine their race tactics from the very beginning. Spanning four days, the rally consists of 20 Special Stages covering roughly 350.52 kilometres. Competitors will encounter a treacherous mix of deep sand, sharp rocks, expansive savanna sections and the infamous fine ‘fesh-fesh’ dust, all compounded by swiftly shifting weather. In this unpredictable environment, tyre resilience, grip and handling stability are paramount to performance.

The Safari Rally consistently draws significant global motorsport attention. Since its return to the WRC calendar in 2021, the Toyota GAZOO Racing World Rally Team has achieved five consecutive victories at this event. Nevertheless, strong challenges are anticipated from both the Hyundai Shell Mobis World Rally Team and the M-Sport Ford World Rally Team, promising a fierce contest for the win.

Since taking over as the exclusive tyre supplier for all WRC classes in 2025, Hankook has leveraged data from its involvement in over 70 global motorsport championships. The company applies these race-proven insights to advance its ultra-high-performance tyre technology, continually reinforcing its leadership in the field.

The Board of Scandinavian Enviro Systems AB (Enviro) has resolved to file for bankruptcy for its fully owned subsidiary, Tyre Recycling in Sweden AB. A formal petition has been submitted to the District Court of Gothenburg to initiate the process. This action forms part of the broader company reorganisation currently underway for the parent company and is specifically intended to improve Enviro’s liquidity and support its long-term profitability.

The subsidiary in question operated a recycling facility in Åsensbruk, which was instrumental in validating both the company’s technological processes and the products derived from them. Having successfully fulfilled this developmental role, the facility’s ongoing operations are no longer strategically essential. Given that the site has not been financially viable, the Board determined that filing for bankruptcy for the subsidiary was the necessary course of action.

This decision is projected to negatively impact Enviro’s financial results through an impairment charge of approximately SEK 84 million (approximately USD 9.14 million). Despite this measure, Enviro’s core operations in Gothenburg will continue without disruption, running in parallel with other initiatives being implemented under the reorganisation framework. It is important to note that the company reorganisation applies exclusively to the parent company, Scandinavian Enviro Systems AB, and not to its subsidiaries.

The Yokohama Rubber Company has confirmed a renewed partnership with KONDO RACING for the 2026 motorsport season, marked by a shared pursuit of victory in the highly competitive SP9 class at the Nürburgring 24-Hour Race. The team will campaign a Ferrari 296 GT3 EVO, equipped with Yokohama’s ADVAN racing tyres, across both the Nürburgring 24-Hour Race (ADAC RAVENOL 24h Nürburgring) and the Nürburgring Langstrecken-Serie (NLS).

This collaboration brings together a proven combination. KONDO RACING, under the leadership of Masahiko Kondo, has consistently demonstrated its capability on the global stage, competing in elite series such as SUPER GT and SUPER FORMULA in Japan, as well as enduring the rigors of Le Mans. Their history with Yokohama at the Nürburgring includes a notable ninth-place overall finish in 2019. More recently, the team showed formidable pace in 2025, securing second place in the qualifying race and remaining a contender among the frontrunners throughout the final event. This performance provides a strong foundation for their 2026 campaign, where the objective is a class victory.

KONDO RACING Director Masahiko Kondo

Yokohama Rubber’s commitment to the Nürburgring extends beyond its partnership with KONDO RACING. The company will continue to provide its high-performance tyre technology to multiple leading teams competing in the NLS and the 24-hour race. The overarching goal is to secure another overall championship, leveraging the reliability and handling precision of its tyres to conquer one of the world’s most demanding circuits. This renewed agreement reinforces a longstanding relationship built on shared success in both domestic Japanese competitions and gruelling international endurance events.

A new study from the California Office of Environmental Health Hazard Assessment (OEHHA) has concluded that crumb rubber infill made from recycled tyres and used in synthetic turf fields poses no significant health risk to those who use or observe them. The comprehensive evaluation found no evidence linking these fields to cancer or other health issues for athletes, officials, coaches or spectators, including young children.

These engineered fields, designed to replicate natural grass, are popular due to their low maintenance, water efficiency and durable, consistent surface. Their widespread adoption in California includes over 900 installations. The infill itself consists of small granules from recycled waste tyres, which help keep the artificial blades upright and provide cushioning and traction.

OEHHA conducted the study to support California's sustainability efforts, specifically its Waste Tire Program, which seeks safe and beneficial uses for recycled materials that would otherwise go to landfills. To ensure a thorough assessment, researchers tested 35 different fields, varying in age and location to represent all of California's climate zones. Multiple samples were taken from each field to account for material differences, and air quality was monitored both during active play and at rest.

The study’s scope was unprecedented, analysing over 100 chemicals of potential concern, far more than previous investigations. In collaboration with Lawrence Berkeley National Lab, researchers simulated human sweat and digestion to identify all chemicals to which a person might be exposed. To understand exposure pathways, OEHHA partnered with UC Berkeley and the University of Arizona. They surveyed over a thousand soccer players, ranging in age from 7 to 71, about their playing habits and observed games to document contact with the turf. The analysis used data from goalies, who have the most frequent contact, to estimate the maximum risk for all players, also considering the potential exposure for a crawling toddler. The final analysis indicated that risks related to cancer, reproductive harm or sensory irritation were negligible.

Kris Thayer, Director, OEHHA, said, "This study should ease concerns about the safety of crumb rubber use in synthetic turf fields. Athletes of all ages can use these fields without parents worrying about this commonly used material."

Zoe Heller, Director, CalRecycle, said, "Protecting public health is our top priority, and California is committed to making sure waste tyres are managed safely so they don’t litter communities or pose risks to residents. CalRecycle appreciates the work of OEHHA and its partners to advance our understanding in support of a cleaner, healthier circular economy."