Because your vehicle's tires are so critical to your ability to drive safely, you want your tires to perform as reliably as possible. One way to increase their reliability is to fill them with nitrogen rather than air.
Oxygen carries moisture, so tires filled with it may promote corrosion and rust of wheel metals. Corrosion and rust, in turn, can damage a wheel, thus inhibiting its performance and shortening its lifespan. Nitrogen, on the other hand, doesn’t support moisture, so it helps prevent wheels’ corrosion and rust. And that means it helps lengthen their useful service life.
Although tires should be maintained at a constant pressure, oxygen seeps out of them over time. (It’s estimated that tires filled with air lose about 1 lb ...[more]