Unlike the tires on an automobile filled with compressed air, those on a commercial airplane ... There are actually several reasons why inert nitrogen gas is used. The primary one, however ...

And when they're inflated, it's not with regular air. Airplane tires are filled with nitrogen. Brandy: Nitrogen is an inert gas, so high temperatures and pressure changes have less effect.

And when they're inflated, it's not with regular air. Airplane tires are filled with nitrogen. Brandy: Nitrogen is an inert gas, so high temperatures and pressure changes have less effect.