Nitrogen is a dry, inert gas used to inflate
airplane tires, off-road truck tires, military
vehicle tires, and race car tires for improved
performance, more tire mileage and better fuel
economy.Helps prevent uneven wear
Oxygen in compressed air permeates through
the wall of the tire, thus reducing the tire's
inflation pressure. During it's journey through
the tire wall, oxygen oxidizes the rubber
compounds in the tire, causing under-inflation
and deterioration of the rubber . Dry nitrogen
gas will maintain proper inflation pressure and will
prevent auto-ignition, will not corrode rims,
extends valve core life, and will help the tire
to run cooler.
advantages - improved tire life
Experts in the tire industry indicate that
oxidative aging is one of the primary causes of
decreased tire life. Oxidative aging is caused
by the diffusion of oxygen from the pressurized
air cavity of the tire to the outside
atmosphere. Tests have shown that if tires are
inflated with nitrogen gas, there is a significant
reduction in tire failure.
Why did race
cars, military and off-road vehicles switch to
Air is about 1/5 Oxygen, and oxygen, especially
at high pressures and temperatures, is a very
When oxygen reacts with things, the process is
called oxidation. When oxidation is extremely
rapid, it's called "burning.
That's one reason nitrogen gas is used in
off-highway and aircraft tires. These tires run
so hot they can actually auto-combust. Nitrogen
gas doesn't support combustion, so nitrogen filled
tires don't add fuel to the flames.
other types of corrosion as well
Oxygen and moisture corrodes aluminum and
steel wheels. Oxygen also reacts with rubber,
another type of "corrosion". When this corrosion
starts, the small particles break off and form
rust and dust, which can clog valve cores,
causing them to leak. The rough surfaces created
from the corrosive action on the wheels leads to
tire beads that may not seal properly, causing
Oxygen also ages the inner liner. As the inner
liner ages, more and more air molecules can pass
through it, causing additional pressure loss.
pressure losses in a truck tire can average 2
psi a month as a result of the air passing
through the sidewalls. Oxygen can also corrode the steel
cords, causing them to rust too.
How does using
Nitrogen in tires help?
nitrogen and oxygen will permeate rubber.
However, nitrogen gas does it much more slowly. It might take
6 months to lose 2 psi with nitrogen gas, compared
to just a month with air. And nitrogen gas is far
less reactive. It doesn't cause rust or
corrosion on steel or aluminum, and it doesn't
degrade rubber. Wheel surfaces stay smooth and
clean, rubber remains supple and resilient.
Nitrogen gas also will not degrade the rubber
seal in the valve core which
extends valve core
life and helps prevents core leaks.
Small bits of dust and debris as a byproduct
of oxidative corrosion to the wheels and alloy
rims can lodge in the valve core seat, causing
Any other reasons
for using Nitrogen Gas?
The air around us is full of water
vapor. Compressing air concentrates the water in
it. Draining the water from your compressor tank
daily helps, but unless you have a really
efficient air dryer system, chances are that
there's a lot of water in your compressed air.