RajinCajun
Bronco Guru
They put it in the planes tires and struts because of the extreme temp changes while in flight. Filtered air can also be used (such that you put into breating cylinders for diving). They do not want the water vapor in the tires or struts to condense at any point, or freeze and cause a heavy spot in the tires that go from 0 to 200mph 
For a vehicle to me it is a waste of time and $.
For a vehicle to me it is a waste of time and $.