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.

Pirelli has designated the SC0 rear tyre as the new benchmark for Moto2 as the MotoGP World Championship resumes its season this weekend at Silverstone for the 12th round. The Italian manufacturer is supplying its standard range compounds for both support classes, with the updated SC0 making a notable return to the British circuit following its successful evaluation there last year.

The 2026-spec soft rear tyre, which initially debuted as a development prototype, features an altered structure from its predecessor and was universally embraced by competitors during practice sessions, even contributing to a new lap record. Its promotion to the standard lineup sees it joined at the rear by the new medium SC1 compound, formerly a development specification, while front tyre duties are covered by the soft SC1 and the medium SC2 options.

Silverstone presents a formidable technical challenge as the longest venue on the calendar at 5.9 kilometres, demanding exceptional machine and rider performance through high-speed corners and rapid directional shifts. The circuit’s low-abrasion surface and notably wide racing corridor allow for varied lines, adding another layer of strategic complexity to the already fast-paced weekend.

In the Moto3 class, Pirelli has made available the soft SC1 and medium SC2 compounds for both front and rear positions. The majority of the field last year favoured the medium SC2 at both ends, a choice that propelled José Antonio Rueda to victory from the back of the grid, though a segment of riders alternatively selected the softer SC1 option for their machines.

Giorgio Barbier, Pirelli Motorcycle Racing Director, said, “For this weekend's round at Silverstone, one of the most iconic and technically demanding circuits on the World Championship calendar, Pirelli will once again provide standard range tyres for both classes, featuring the rear soft SC0 compound that made its Moto2™ debut at this very circuit last year as the E0125 development option. The E0125, which complemented the then standard soft tyre, was immediately appreciated by the intermediate class riders, who, on a highly demanding circuit characterised by numerous high-speed corners and changes of direction where stability is essential, focused exclusively on this new solution from Friday onwards.

“Introduced again at subsequent events, the former E0125 quickly became the Moto2™ riders' benchmark, offering greater stability, outright one-lap performance and consistent performance across a wide variety of weather and track conditions. As a result, it was promoted to the new standard soft tyre for this season. More than a year after its debut, and thanks to the significant development work carried out by the teams during this period, the SC0 has already contributed to numerous lap records this season. Weather conditions permitting, it will therefore be interesting to see whether Silverstone can deliver further progress compared with last year's benchmark.”

Hankook Tire, the exclusive tyre supplier for the FIA World Rally Championship, played a central role in the season's 10th round at Secto Rally Finland. The event concluded on 2 August in Jyväskylä, where the company’s Dynapro R213 extreme all-terrain rally tyre was put to the ultimate test across the demanding Finnish landscape.

Competitive action unfolded over 20 Special Stages, covering a total distance of 316.04 kilometres. Renowned as the fastest rally on the WRC calendar, the event subjected vehicles and tyres to extreme speeds. The challenging route was characterised by blind crests that impaired visibility, frequent jumps and narrow forest roads, placing a premium on tyre durability and overall driving stability.

The supplied Dynapro R213 tyre proved instrumental in managing these severe conditions. On the ultra-high-speed gravel sections, it effectively absorbed the impact of repeated landings while delivering consistent grip and precise steering response. Its robust construction ensured reliable performance across the loose dirt and forest roads, allowing competitors to push their vehicles to the limit.

Sami Pajari of Toyota GAZOO Racing claimed a home victory, securing back-to-back wins after his success in Estonia. This result advanced him to second in the Drivers’ Championship with 171 points. Looking ahead, Round 11 is the ueno Rally del Paraguay from 27 to 30 August, featuring gravel stages that will demand exceptional tyre resilience. Hankook applies data from its WRC involvement and other global motorsport events to its R&D, fostering continuous innovation and reinforcing its status as a leading global brand.

Legislation aimed at overhauling decades-old federal tyre safety regulations has been introduced in the United States Senate. The Tire Safety Modernization Act of 2026, sponsored by Senators Roger Wicker of Mississippi and Raphael Warnock of Georgia, seeks to replace outdated testing mandates with contemporary performance standards that better reflect current manufacturing innovations and production techniques.

The proposed bill directs the Department of Transportation to revise federal testing protocols, retiring obsolete requirements in favour of more relevant criteria. A key component of the legislation involves aligning high-speed testing procedures with internationally recognised best practices while also clarifying existing safety criteria to ensure more effective regulatory oversight. The measure preserves a strong emphasis on passenger safety while adapting to the capabilities of modern tyre engineering.

Strong support for the initiative has emerged from the tyre manufacturing sector. Anne Forristall Luke, President and CEO of the U.S. Tire Manufacturers Association, praised the bipartisan effort as a crucial step towards aligning American rules with technological progress, bolstering road safety and enhancing the industry’s global competitiveness. Executives from major manufacturers, including Continental Tire, Goodyear and Yokohama, have similarly endorsed the update, noting that it would allow engineering and compliance resources to focus on innovations that genuinely benefit drivers.

Senator Warnock highlighted the importance of Georgia’s prominent tyre production sector, while Senator Wicker emphasised that federal regulations have failed to keep pace with evolving manufacturing technology. Industry leaders collectively view the act as a thoughtful, science-based modernisation that supports domestic manufacturing competitiveness and ensures that safety standards reflect the demands of modern vehicles, roads and driving conditions across the country.

Bridgestone's e-CENTRE Excellence Programme has delivered a significant financial boost to two community organisations in South London, with nearly GBP 1,000 raised through a charity initiative run by Merityre Southfields, a flagship Bridgestone e-CENTRE. The campaign generated a total of GBP 938, which was evenly distributed between St Michael's Church Social Projects and the Friends of Wimbledon Park, both of which are vital to the Wandsworth area.

Over a five-month period spanning November and December 2025, as well as February to April 2026, motorists were given a one-pound donation token with every Bridgestone tyre purchased. Customers were then able to choose which of the two local causes would receive their contribution, resulting in GBP 464 for St Michael's and GBP 474 for the Friends of Wimbledon Park.

The funds allocated to St Michael's Church Social Projects will finance the installation of an additional water tap at its Kitchen Garden Project, located on the Church Memorial Field. Since its establishment in 2020, the garden has expanded into a productive allotment with over 30 raised beds, providing fresh organic produce for community lunches and a weekly food bank. The new tap is expected to reduce watering time for volunteers, enabling them to dedicate more attention to the retired, unemployed, isolated and vulnerable individuals who rely on the project for support, skill development and social connection.

Meanwhile, the Friends of Wimbledon Park will direct its share towards a new seating area in the Waterfall Garden, with any leftover funds supporting tree and bulb planting as well as maintenance materials. This retail-led effort exemplifies a core component of Bridgestone's broader e-CENTRE Excellence Programme, which has allocated over GBP 1 million to encourage retailers to adopt sustainable practices and foster positive social and environmental change within their localities.

Dene Arnold, Director, Merityre, said, “As a business rooted in the local community, we wanted to give our customers the opportunity to support causes that really matter to people in Southfields. We're incredibly grateful to everyone who got behind the campaign and helped us raise such a fantastic amount. Being part of Bridgestone's e-CENTRE network is about much more than providing premium products and services. It's about making a meaningful contribution to the communities we serve and creating a positive impact beyond the garage doors. It's especially rewarding to know exactly where the money is going. Whether it's helping volunteers continue to grow fresh produce for people in need or creating new spaces for the community to enjoy in Wimbledon Park, these are projects that will make a lasting difference locally.”

Gresia Cabrera, Bridgestone's Business Development Manager and project lead for the e-CENTRE programme, said, “Community engagement sits at the heart of the eCentre philosophy, so it's fantastic to see Merityre Southfields bringing that vision to life. The team continues to demonstrate that modern tyre retailers can be a force for good, supporting local people and causes while delivering outstanding service for motorists. Initiatives such as this show that the industry can make a genuine difference and create value far beyond tyres alone. One of the strengths of the e-CENTRE programme is that it empowers retailers to make a meaningful impact in the communities they serve. Seeing these donations translated into practical improvements that will benefit local people for years to come is exactly what the programme is all about.”