These claims are overstated. Small amounts of air naturally leak out of tires over time, especially when tires are subject to large temperature swings. This is because the walls of tires are slightly porous. When a tire gets hot the air inside it expands.
Since nitrogen molecules are bigger than normal air molecules, it is harder for them to leak out. This means a tire filled with nitrogen will maintain air pressure longer. A normal tire filled with regular air loses an average 1 to 2 PSI pounds per square inch per month. But this improvement is slight — only about 1. This is partly because air is already made up of 78 percent nitrogen and just under 21 percent oxygen, with the rest a mix of water vapor, carbon dioxide and other gases.
When tires are filled from a nitrogen air pump this ups the percentage of N2 to between 93 and 95 percent. There are more cons than pros for changing to N2 tires. In return, they will lower the blow-out potential. It is expensive to fill your tires with nitrogen. Other air filling gases make it a free service. The nitrogen filling stations are not readily available. If any, you have to endure the queue, especially on a busy day. In case you fill the same tire with regular air, it may dilute the nitrogen.
Consequently, it will drain the benefits. Can you mix air and nitrogen in tires and reap excellent benefits? Yes, you will experience better performance of your vehicle. Nitrogen is among the inert gases hence will not react with materials. Plus, nitrogen is corrosion resistant. In our case, nitrogen will resist any leakage. The molecules on nitrogen will not sneak through the tire. Oxygen molecules can pass through rubber molecules effortlessly.
The inert property of nitrogen makes it suitable for a race car. Furthermore, you can use it for heavy-duty equipment and aircraft. Nitrogen filled tires are ideal for usage where constant air pressure is crucial.
Besides, you can use nitrogen-filled tires on particular vehicles. They should be those that you do not use frequently. The tire usually loses one pound of pressure monthly. Remember, you will encounter some shortcomings as you use nitrogen. Nitrogen filled tires are proving to be useful as you operate them. They come with some excellent benefits as compared to other air-filled tires. The air-filled tires will not maintain a stable pressure for too long. In the meantime, if you want to improve your tire life, then use nitrogen-filled ones.
The only difference will be on operational costs. As a regular user of the vehicle, you may need to cut costs on your tire. Depending on your budget, you can choose the nitrogen-filled tires. In case you cannot manage them, you may settle for air-filled ones. It could be best if the traders increased the number of nitrogen filling stations.
In the current situation, they are not common in every city. You will have to travel for a considerable distance to locate these stations. Alternatively, they can reduce the filling fees. The arrangement is to encourage more people to use nitrogen-filled tires. Nitrogen filled tires are eco-friendly. Any system that delivers pure nitrogen is also going to deliver dry nitrogen.
Filling tires with nitrogen involves filling and purging several times in succession to get as much oxygen, water, and other gases out of the tire as possible. So, there are the benefits. With nitrogen in tires, your tire pressures will remain more constant, saving you a small amount in fuel and tire-maintenance costs. There will be less moisture inside your tires, which means less corrosion on your wheels.
Keith Willcome, who works in consumer tire engineering for Bridgestone Americas Tire Operations explains:. Like Joes, Longacre sells to racers, and some of its most precise digital pro gauges cost hundreds of dollars. Even this lower-cost digital gauge has some advantages over analog units. For one, it's easier to read, displays pressure in 0.
That should be more than enough for just about anyone. This is the gauge that we gauge good enough to use in the Car and Driver test garage. We set all of our test vehicles' tire pressures precisely to ensure that they perform their best in our comprehensive testing program.
This low-cost Accutire digital gauge works beautifully. It reads in half-pound increments, so you can set your tires' pressures as accurately as we do.
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