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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The Tyre Recovery Association (TRA) has warned that UK’s circular economy goal will remain out of reach if waste tyre processing continues to move abroad. Environment Agency data shows enhanced verification measures introduced last October have a compliance rate below two percent, a figure the TRA described as deeply concerning. Without a fundamental shift in policy and enforcement, a closed-loop system cannot be realised.

Exporters are systematically ignoring the new rules. Of 4,189 waste tyre shipments since 1 October 2025, only 54 post-shipment forms were completed correctly, a compliance rate of just 1.3 percent. The vast majority of UK’s annual 300,000 tonnes of tyre exports end up at illegal batch pyrolysis plants in India. The TRA called this both an environmental failure and an economic loss, as the UK ships abroad the very feedstock needed to power its own circular economy.

While the UK treats waste tyres as a disposal problem, the domestic sector holds 150,000 tonnes of licensed but idle processing capacity. The TRA argued that with enforceable regulation and proper oversight, the industry could expand significantly, creating skilled jobs and generating high-value secondary materials at home instead of losing them overseas.

Shredding tyres reduces environmentally harmful disposal and unlocks new value streams. Shredded tyres are strategic feedstock for sustainable aviation fuel, advanced continuous pyrolysis, recovered carbon black for new tyre manufacturing and rubberised asphalt for long-life roads. The TRA urged immediate regulatory action to stop uncontrolled exports and activate dormant domestic processing capacity without further delay.

Peter Taylor OBE, Secretary General, Tyre Recovery Association, said, “The Environment Agency’s transparency is very welcome, but the figures are an indictment of those tyre export brokers who continue to operate without conscience. To see a compliance rate of just 1.3 percent is ultimately depressing, these measures are a long way off having any meaningful impact.

“New measures need to be introduced so that EA can fulfil their statutory duty; until then, the export chain simply continues to abuse their goodwill. We must face the hard reality. Shred is the only immediate route to a circular economy and sustainable future for British operators. Unless we mandate that tyres must be mechanically processed into shred before they leave our shores, we will continue to fuel pollution abroad while our domestic recycling assets wither.

“Our neighbours and competitors are realising the opportunity from secondary materials. We continue to export the UK’s future in the back of shipping containers, while the rest of the world builds a circular economy. If the UK does not move to a shred-only mandate, we will be left behind.”

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Pirelli has claimed the top position in a recent ranking of the world’s fastest road-legal track tyres, according to the Tyre Reviews platform. The comparison, which evaluated four products available in Europe and North America, crowned the P Zero Trofeo RS as the pinnacle of Pirelli’s road range. The tyre integrates technological solutions derived from the Italian company’s 120 years of motorsport experience at the highest levels.

During dry handling tests, the P Zero Trofeo RS set the fastest lap time and was described as clearly superior. Tester Jonathan Benson noted he had to recalibrate his braking points twice due to unexpectedly high grip levels. The tyre enabled quick and precise turn-in, earlier throttle application and immediate traction on corner exits, with the front axle delivering strong grip and confidence. It also ranked first in dry braking with the shortest stopping distance.

Consistency of performance under demanding conditions was another standout feature, confirming the product’s ability to maintain high performance over time. These results were reinforced by a separate test from Auto Bild Sportscars, which compared five road-legal semi-slick tyres. There, the P Zero Trofeo RS also secured first place with an ‘Exemplary’ rating thanks to best-in-class dry performance and long-distance consistency.

Designed for track use yet approved for road driving, the P Zero Trofeo RS was originally developed for original equipment and is now available on the replacement market. It brings Pirelli’s expertise from bespoke fitments for high-performance prestige and premium models to all customers. While conceived to maximise vehicle performance on the track, Pirelli engineers have also ensured a high level of safety on wet surfaces.

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Sun Auto Network has expanded its footprint in the Midwest through two strategic moves: the opening of a new Plaza Tire Service in Owensboro, Kentucky, and the acquisition of two Checkpoint Tire & Service locations in Illinois.

The Kentucky addition marks the 89th Plaza Tire Service overall and the eighth within the state, broadening regional access to automotive care. Meanwhile, the Illinois acquisitions include one Checkpoint Tire & Service location and one Checkpoint Express Lube Center, bringing Sun Auto’s total presence in the state to 15 sites. The Checkpoint additions specifically introduce express oil changes and maintenance services, offering faster and more convenient options alongside complete vehicle care.

Both the Kentucky and Illinois locations now operate under Sun Auto’s Driver Commitment, which emphasises clarity, confidence and customer care. They also benefit from the company’s scaled network advantages, including a Price Match Guarantee, access to leading tyre brands, round‑the‑clock online appointment scheduling, digital vehicle inspections, nationwide warranties and a full range of services such as tyre replacement, alignments, brakes, batteries and preventative maintenance.

Rob Kingery, Regional Vice President, said, "Growth is focused on strengthening the markets we already serve and improving access to dependable automotive care. These additions build on that approach, bringing greater convenience and service capabilities to the communities we support."

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Goodyear Racing Eagle tyres emerged as the central strategic battleground in the LMGT3 class during the FIA World Endurance Championship’s season-opening 6 Hours of Imola. The Italian circuit’s notably smooth asphalt led to unexpectedly low tyre degradation across the six-hour race, which allowed teams to experiment with varied tactical plans rather than following a single, predictable approach. Under this season’s increased tyre allocation rules, teams enjoyed greater flexibility, although not every squad chose to use its full supply.

The performance and consistency of the Goodyear Racing Eagle Medium compound proved decisive, with most teams minimising pit lane time by double- or triple-stinting their tyres. However, a minority of competitors opted for a contrasting strategy, fitting fresher Goodyear Racing Eagle tyres more frequently. Crucially, the durability of the Medium compound ensured that both approaches remained competitive, resulting in a wide array of live strategies unfolding simultaneously across the LMGT3 field.

The FIA World Endurance Championship resumes with the TotalEnergies 6 Hours of Spa-Francorchamps from 7 to 9 May 2026. Over the same weekend, Goodyear Racing Eagle tyres have also been in action at Kansas Speedway in the NASCAR Cup Series and NASCAR O’Reilly Auto Parts Series, as well as at Donington Park for the British Touring Car Championship season opener.

Stephen Bickley, Goodyear Endurance Programme Manager, said, “In the first half of the race, we saw several teams double stinting the unloaded left-hand side, but changing their right-hand side tyres at every stop. But as the race progressed, some teams began to double-stint both sides. This meant that teams that had only changed the right-hand side at the previous stop were onto their third stint with the left-hand tyres. Across the field, we saw some teams stop as little as five times during the race, and some as many as eight, emphasising the range of different strategies teams employed.”

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