Nitrogen vs Air

Nitrogen has benefits in tires used for air craft or race cars. For a vehicle at normal speeds, it serves no practical purpose. It is a profit center for the tire seller.

If it makes you feel better, spend the money on it. It won’t hurt, but remember that it is not as easy to find 100% Nitrogen for bring tires up to pressure.

Normal air contains 78% Nitrogen, so is it worth it for an extra 22%? I think not.

The next time I tow my trailer at 200 MPH or it has the name “Boeing” on it, I will use nitrogen.

Since the air we breathe is somewhere around 78% nitrogen, it's hard to give credence to the idea that filling your tires with nitrogen is anything but a marketing tool. JMHO

Just read an article on this in the local newspaper. The net is that unless nitrogen is free and available you are better of just using plain old air.