Tire inflation system?

[Southern Ram]

Does anyone know if there is a tire inflation on the truck or do I have to air them up? Also if I do have to, does anyone know if the tires have nitrogen in them. I’m confused about it.

 

[retired]

you have to air them up. you do not have to worry about nitrogen. the air we are breathing is 78 % nitrogen

 

[tron67j]

Tires filled with nitrogen usually have green caps. Of course there is a mix of oxygen and nitrogen already in a tire since the void in there was filled with O2. The reason as I understand it to use N is that the molecules are bigger and don't sleep out as easily over time, so proper inflation is easier to maintain. You can mix the glasses without any adverse impact.