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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Discount Tire has released a new list of the longest-lasting light truck and SUV tyres, drawing on tyre life data from Treadwell, the company's tyre recommendation tool available to all consumers. Treadwell is powered by millions of real-world tyre mileage and tread depth readings along with independent testing at Treadwell Research Park.

The list identifies 10 tyre models for light truck and SUV drivers that exceed a 70,000-mile median lifespan under normal driving conditions. Every tyre carrying a listed limited treadwear warranty also surpasses its manufacturer warranty by more than 10,000 miles.

According to the U.S. Department of Transportation, American drivers average 13,400 miles per year. On top-performing tyres, a light truck or SUV owner could gain an extra year or more before needing a tyre change. Treadwell's aggregated lifespan figures reflect drivers who properly maintain their tyres, including regular rotations and wheel alignments, with median values collected to 2/32-inch tread – generally considered, and in some states legally mandated as, the minimum viable tread depth. Actual results may vary based on driving location and habits, such as regular highway or all-terrain use.

Discount Tire developed Treadwell using decades of data and independent testing to deliver a hassle-free tool offering personalised tyre recommendations based on where, what and how drivers drive. More than 20 million people used Treadwell online and in stores in the past year.

Dr John Baldwin, Chief Product and Technical Strategist, Discount Tire, said, "If you're driving a light truck or SUV and prioritise getting additional miles of safe driving out of your tyres, Treadwell can be a source of unbiased advice. Our goal is always to be there for our customers when and where they need tyres, which is why Treadwell is available online and used each day in our stores to empower drivers to find the best tyres for their vehicle."

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Plaza Tire Service, a prominent tyre and automotive service provider in the Midwest and member of the Sun Auto Network, has expanded its footprint with a new store in Mattoon, Illinois. The addition strengthens the company's presence in the state and offers drivers throughout Central Illinois improved access to trusted tyre and vehicle maintenance services.

The Mattoon location provides motorists with a convenient destination for tyres, preventive maintenance and automotive repair. Customers can choose from an extensive inventory of leading tyre brands while accessing a full range of services, including oil changes, brake service, batteries, alignments, steering and suspension repair and other routine maintenance.

Plaza Tire Service emphasises selection, convenience and value through its Price Match Guarantee and signature 4 Tires in 1 Hour Guarantee, with broad in-stock inventory available for same-day installation. Founded in Missouri in 1963, the company has become one of the Midwest's largest tyre and automotive service providers, operating across five states while combining regional heritage with the resources of the more than 600-location Sun Auto Network.

Rob Kingery, Regional Vice President, Sun Auto Tire & Service, said, "We're excited to bring Plaza Tire Service to Mattoon and introduce more drivers to the convenience, value and trusted service that have defined our brand for more than 60 years. This location allows us to serve the community with the tyre expertise, same-day service and comprehensive automotive care that customers have come to expect from Plaza Tire Service."

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Bridgestone has unveiled the BATTLAX ADVENTURE A42, an adventure motorcycle tyre slated for sequential release across global markets beginning 1 January 2027. Conceptualised as the answer to road-going adventurers, the tyre targets riders who predominantly stay on pavement, aiming to blend peace of mind, economy and comfort. Whether navigating city streets, expressways or winding roads, it seeks to harmonise wet performance and wear life while curbing ride noise to support comfortable long-distance touring.

Adventure motorcycles are prized for their versatility, spanning urban commuting to extended travel. In Europe, demand for tyres in this segment has climbed 45 percent over the past decade. Bridgestone originally addressed this growing category with the BATTLAX ADVENTURE A41 in December 2017, responding to rider priorities such as wet-weather grip during sudden downpours, wear resistance and long-haul comfort.

The new A42 builds on that foundation with measurable gains in three areas. Under straight-line acceleration, tyre slip ratio drops 14 percent versus the prior model, aiding stability in rain. Wear life extends by 18 percent at the front and 25 percent at the rear. A larger contact patch enhances stability and comfort, and internal testing showed a 15 percent reduction in tyre noise.

These improvements stem from new tread compounds, an adventure-inspired tread pattern and optimised construction that carries forward core BATTLAX lineage details with materials tailored to road-oriented adventure bikes. The front compound employs a flexible polymer for road grip, while the rear uses a polymer boosting wear resistance and mileage – both feature tuned silica and carbon content. The aggressive yet refined pattern, inheriting the latest BATTLAX design language, incorporates Pulse Groove water drainage technology and a revised groove layout that raises pattern stiffness, balancing wet performance, wear life and quietness.

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Apollo Tyres Ltd's premium Vredestein brand has reinforced its all-season reputation after the Quatrac Pro 2 and Quatrac delivered strong results across three German group tests by Auto Bild, Auto Bild Allrad and Auto Motor und Sport, with the Quatrac Pro 2 earning Exemplary ratings in both Auto Bild evaluations and the Quatrac securing a Very good rating and a Price Performance recommendation from Auto Motor und Sport.

Auto Bild placed the Quatrac Pro 2 joint second in size 225/45 R 17. Thirty tyres entered wet and dry braking qualification, with 15 advancing to full testing in a Volkswagen Golf and Golf GTI. The tyre produced the best snow performance, with the shortest snow braking distance at 25 metres from 50 kmph, the fastest snow handling at 55.6 kmph and the highest snow slalom lateral acceleration at 2.51 m/s². It recorded the second shortest wet braking distance at 42.8 metres from 100 kmph and the lowest pass-by noise at 69.6 dB(A).

In Auto Bild Allrad's SUV test, the Quatrac Pro 2 finished joint second among 12 products in size 225/55 R 18 on a MINI Countryman, recording the shortest wet braking distance at 51.8 metres from 100 kmph and strong aquaplaning results, sharing second in the snow slalom at 4.70 m/s², recording joint third snow braking at 25.9 metres from 50 kmph, ranking fourth in dry braking at 39.4 metres from 100 kmph and achieving the lowest pass-by noise at 68.2 dB. Launched this year, the Quatrac Pro 2 covers 17- to 24-inch rims, with widths up to 355mm, speed ratings up to 300 kmph and high-load options, while its longitudinal and directional groove tread supports an A wet grip rating.

Auto Motor und Sport tested the Quatrac in size 195/55 R 16 on a Hyundai i20, where it stopped in 30.4 metres from 80 kmph on wet roads, recorded the second fastest wet handling at 88.5 kmph and ranked third in the wet circle at 7.71 m/s². On dry roads the Quatrac recorded the second fastest handling at 115.9 kmph, with testers noting agile steering and stability in avoidance manoeuvres, while it showed balanced snow handling at 88 kmph. Vredestein has been recognised for all-season tyres since the 1990s and now offers one of the market's most comprehensive portfolios.

Yves Pouliquen, Vice President, Commercial EMEA at Apollo Tyres Ltd, said, “Drivers choosing all-season tyres want confidence that they can cope with changing conditions throughout the year. These independent test results demonstrate the strength of our all-season range, from the Quatrac for mid-sized family cars and SUVs, to the Quatrac Pro 2 optimised for high-performance vehicles of all types. These products are the result of enduring commitment to the all-season category, as well as our focus on designing and developing tyres in Europe to meet the needs of European drivers.”

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