Can You Mix Air and Nitrogen in Tires?

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Normally tires are filled with air, but recently I have seen some gas stations that allow nitrogen instead of air. So, if the air pressure in a nitrogen-filled tire has gone down, is it safe to fill the tire with a mixture of regular air?

Why Put Nitrogen In Tires?

It is only in the last few years that more and more people have started putting nitrogen in their tires. Some people may have been advised to fill their tires with nitrogen when replacing them at gas stations, tire stores, or car accessory stores.

Nitrogen-filled tires were originally used in aircraft and racing cars, but they are now becoming more common in passenger cars due to their advantages such as resistance to deflation, improved fuel efficiency, and resistance to ignition in the event of a burst.

Although it is difficult to feel the effects when driving on ordinary roads, some people say that the ride quality is different when driving on highways.

Is There Any Problem With Mixing Nitrogen & Air In Tires?

In order to fill tires with nitrogen, it is necessary to completely deflate the tires and then fill them with nitrogen only.

The cost varies from vendor to vendor, but it is not particularly expensive, about 20$ per visit, but it is not cheap if you have to do it frequently. For normal air tires, you can have them inflated at gas stations for free while you check the air pressure, but nitrogen tires cannot be inflated frequently.

The question then becomes, “Is it safe to mix air with nitrogen tires? The conclusion is that there is absolutely no problem with mixing air with nitrogen tires. To begin with, air contains about 80% nitrogen.

Even if the air is added to a nitrogen tire, no strange chemical changes will occur. However, if you inflate too often, your 100% nitrogen tire will become just an air tire, so if the air pressure drops too low, check your tires at the place where you had them filled with nitrogen.

What Happens If You Don’t Refill Your Tires With Either Nitrogen Or Oxygen?

As mentioned above, nitrogen-filled tires have the advantage of being “hard to deflate. Therefore, there are many cases in which many people assume that “hard to deflate” = “no deflation” and do not check the air pressure.

As a result, they continue to drive with underinflated tires and eventually end up in a situation where the steering wheel is taken off the road or they get stuck with a flat tire.

Although there is a charge for refilling nitrogen, it is better to check the air pressure frequently and refill the air if necessary for safety.