Nitrogen in all tires will help to extend tire life by reducing premature failure of the tire. The causes of premature tire failure which are addressed by nitrogen include
under-inflation
overheating
pressure increase to heat buildup
uneven wear due to improper inflation
rim corrosion
rubber deterioration by oxidation
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. Oxygen in compressed air permeates through the wall of the tire reducing the tiresinflation pressure. During its journy through the tire wall, oxygen oxidizes the rubber compounds in the tire, causing underinflation and deteriorated rubber. Dry nitrogen helps the tire to run cooler.
I have it now in my Triton trailer tires and truck. Tires run cooler and no loss of air presure. Cooler tires and pressure right less gas less chance of tire blowing out.
Air can be added to nitrogen with no problems.
Goodyear in Indpls In. got me with this so others should also be able to help in the other states.