air we breathe
The air that's in your tires
A tire filled with "plain old air"
can lose 1.5 psi in less than a month
With nitrogen, it can take up to six months to lose 1.5psi.
Oxygen reacts and damages inner tire liners and belt packages; nitrogen
Draining water from your air lines every day helps, but unless you
have a really efficient air dryer, chances are there's a lot of water
in your compressed air.
The air around us is full of water vapor. It's called "humidity".
Compressing air concentrates
the water in it.
Small bits of corrosion from wheels can prevent valves from seating
properly, leading to loss
of air pressure.
NASCAR and IndyCar teams use nitrogen because it allows them to
more accurately predict
tire pressure fluctuation.
Graphics provided by Bridgestone/Firestone.