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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Sun Auto Tire & Service has reached a major milestone with its new Plaza Tire Service outlet in Bowling Green, Kentucky, officially marking the company's 600th store. Since 2017, the organisation has surged from roughly three dozen locations to a dominant force within the independent tyre and automotive service sector.

The Bowling Green facility offers premium tyre products alongside skilled mounting, alignment, balancing, puncture repair and full mechanical work. Patrons benefit from digital booking and electronic vehicle health reports, all under the firm's philosophy emphasizing transparency and attentive treatment. This launch coincides with the group securing Better Business Bureau (BBB) recognition across its entire portfolio.

Beyond retail, the company is supporting local academic and athletic pursuits. Partnering with the Southcentral Kentucky Community and Technical College Foundation, it has funded two student scholarships. A Drive With Purpose initiative partners with the high school cheerleading squad, with a share of oil change revenue directed to the programme over the coming month.

BBB accreditation denotes adherence to honest dealings and clear communication, offering consumers a reliable benchmark. As Sun Auto celebrates this landmark, its customer pledge and accredited standards demonstrate a sustained commitment to responsible service across its nationwide footprint.

Tony Puckett, Chief Executive Officer, Sun Auto Tire & Service, said, "This milestone represents far more than a store count. Reaching 600 locations is a testament to the thousands of teammates who deliver exceptional service every day and the customers and communities who trust us with their vehicles. As we continue to grow, our focus remains unchanged: providing clear communication, trusted guidance and expert care through the local brands our customers know and rely on."

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Dunlop Motorcycle Europe and Avon Tyres are set to showcase their combined expertise in cruiser, touring and custom motorcycle tyres at the upcoming European Bike Week, one of the continent’s largest gatherings for riders. The event unfolds along the shores of Austria’s Faaker See and routinely draws tens of thousands of enthusiasts with its mix of live entertainment, custom bike displays, demo rides and a broad spectrum of industry exhibitors.

Reinforcing its deep-rooted ties with Harley-Davidson, Dunlop will again sponsor the event’s signature Harley-Davidson Parade. Both tyre manufacturers will occupy separate exhibition spaces, continuing a joint presence at major trade fairs that began after Avon became part of the Goodyear family in 2022. Their stands will feature Dunlop’s co-branded Harley-Davidson tyres and Avon’s expanded Cobra Chrome line for custom cruisers, while Dunlop additionally offers a hospitality bus and the returning Ape Hanger Challenge, where daily winners earn a free set of co-branded tyres.

Earlier this year, Dunlop was named exclusive tyre supplier for the Harley-Davidson Bagger World Cup, providing racing tyres for the MotoGP-supporting series. Attendees may combine the festival with the 2026 Bagger World Cup finale, scheduled for 19–20 September at the Red Bull Ring in Spielberg.

The 2026 European Bike Week runs from 8–13 September at Faaker See. The Dunlop-sponsored Harley-Davidson Parade is set for 12 September, departing at noon from Rosental Street near the Pogöriacher roundabout and Harley-Davidson sculpture.

Roberto Finetti, Marketing Manager Motorcycle Europe, Goodyear, said, “Dunlop and Avon have a proud heritage in the cruiser and touring motorcycle segment, and European Bike Week is a fantastic opportunity to meet thousands of passionate riders from across Europe. We look forward to welcoming visitors to our stands, where they can discover our biggest ever range of Dunlop and Avon tyres for cruiser, custom and touring bikes, as well as take part in some fun challenges.”

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Kumho Tire USA has introduced the all-new Crugen GT Pro, a premium all-season touring tyre engineered for larger crossovers and SUVs. The latest addition delivers superior ride comfort and confident year-round capability while featuring one of the most robust treadwear warranties in its class. The launch responds to shifting consumer preferences towards larger vehicle platforms.

To commemorate the release, Kumho is offering a promotional incentive through October 31. Customers purchasing a set of four qualifying tyres will receive a USD 80 prepaid Mastercard, applicable to the new Crugen GT Pro and Road Venture HT, AT52 and RT models.

The Crugen GT Pro utilises K-Maxmile technology and a next-generation tread compound to achieve a 20 percent improvement in wear resistance over its predecessor. An optimised contact patch promotes even treadwear, backed by warranties up to 75,000 miles for H- and V-speed rated versions. K-Noise Defender technology and rounded tread block edges reduce resonance and road impacts, lowering interior noise by up to 0.8 decibels.

Reinforced shoulder blocks and a zigzag tread pattern enhance stability and high-speed handling for heavy SUVs and electric vehicles. K-Sipe Control technology and wider lateral grooves improve wet braking and light-snow traction, while Dual Performance Block Technology resists hydroplaning. Available now in 85 sizes from 16 to 22 inches, the Crugen GT Pro covers over 85 percent of the current crossover and SUV market.

Shawn Denlein, President – Sales and Marketing, Kumho Tire USA, said, “As crossovers and SUVs continue to dominate new vehicle sales, today’s drivers expect replacement tyres that combine long tread life, ride comfort and confident all-weather capability. Crugen GT Pro was engineered to deliver the premium performance today's drivers demand at an exceptional value that Kumho is known for.”

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TyreSafe has entered into a formal partnership with Knowsley Council to advance tyre safety awareness among motorists throughout the borough. This collaboration bolsters the council’s broader dedication to enhancing road safety and aligns with its strategic objective of reducing traffic-related harm on local highways.

Under this agreement, TyreSafe will supply practical educational materials that clarify driver responsibilities and guide proper tyre inspection procedures. The initiative is designed to empower road users to detect early warning signs of wear, incorrect pressure or damage, thereby preventing minor issues from escalating into hazardous failures. This educational push complements Knowsley’s existing road safety programmes, which integrate engineering improvements, public information campaigns and enforcement measures.

The urgency of this effort is underscored by recent collision data. Over the five-year period concluding in 2025, Knowsley recorded 945 police-attended road incidents, resulting in 262 casualties classified as killed or seriously injured, including 12 fatalities. With more than one billion vehicle miles travelled across the borough annually, proper vehicle maintenance is critical for safeguarding drivers, passengers and pedestrians alike. Tyres, being the sole contact point between a vehicle and the road surface, are fundamental to effective braking, steering and overall handling.

Regular condition checks are therefore essential, particularly given that regional enforcement operations frequently uncover illegal or defective tyres, which carry severe penalties and elevate accident risks. The TyreSafe-Knowsley partnership will facilitate joint campaigns, community engagement and educational events, ensuring clear tyre safety guidance reaches a wide audience. This initiative forms part of TyreSafe’s broader UK-wide strategy to foster multi-sector collaboration, recognising that lasting reductions in road deaths and serious injuries demand coordinated action across education, enforcement, engineering and vehicle safety standards.

Cllr Tony Brennan, Knowsley’s Cabinet Member for Regeneration and Economic Development, said, “Keeping people safe on our roads requires everyone to play their part, and our Vision Zero approach is focused on reducing the risk of people being killed or seriously injured. Making sure vehicles are safe and properly maintained, including their tyres, is an important part of protecting drivers, passengers and other road users. Tyres can have a significant impact on braking, steering and vehicle control, so ensuring they are legal and in good condition should be part of every motorist’s routine. We’re pleased to be partnering with TyreSafe to provide motorists with clear, practical information that supports our wider road safety work and helps people make safer choices on Knowsley’s roads.”

Stuart Lovatt, Chair at TyreSafe, said, “Tyre safety has an important role to play in keeping everyone using Knowsley’s roads safe. Whether someone is making a short local journey or covering significant distances, ensuring their tyres are legal, correctly inflated and in good condition is essential. Simple, regular checks can help motorists identify problems before they become a risk. We’re delighted to partner with Knowsley Council. Their commitment to Vision Zero and their work to improve safety across the borough makes this a particularly valuable partnership. By working together, we can raise awareness of tyre safety among road users and support the council’s wider efforts to make Knowsley’s roads safer.”

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