Nitrogen tire inflation offers many great advantages over compressed air in a tire. Here are some of them:

Increases safety due to better air pressure retention

It's a fact that low tire pressure is the leading cause of tire failure, which can lead to an accident. It's also a fact that the vast majority of consumers do not check their tire pressures often enough. Nitrogen reduces the problem; nitrogen will not permeate through the rubber of the tire as quickly as compressed air (3-5 times slower),  so the nitrogen inflated tire will not lose pressure as quickly as it would have with compressed air. In addition, because nitrogen contains no oxygen or moisture, you eliminate the problem of corrosion in the rim's bead area and valve stem seals, both of which accelerate pressure loss.

Longer tire life

Due to the fact that a nitrogen inflated tire stays properly inflated longer, it will run cooler which leads to longer life of the tire. Since it contains no oxygen, there is no oxidation of the rubber itself, nor of the steel belting which also leads to longer tread life.

Better fuel economy

A cooler, properly inflated tire offers low rolling resistance compared to a hot, underinflated tire. In fact, government studies show that up to 6% loss of fuel economy can result from underinflated tires.

Virtually eliminates tire pressure fluctuation

Due to its stability and absence of moisture, a nitrogen inflated tire does not fluctuate pressure whether hot or cold. With the increasing use of tire pressure monitoring systems (TPMS) from OEM's, this is important because it means fewer low pressure warning lights on the vehicle's dash.