Nitrogen filled tires

This may be a weird post but I was curious if anyone has ever tried filling their tires with a 40cu nitrogen tank. If so how many would it take for 4 17" tires (bleed out to full)? I have these readily available to me from my work and probably would be cheaper vs going to some shop.

 

Shops usually use an N2 generator rather than packaged gas. If you have CDA available to you, then that would be ideal and significantly cheaper.

 

I do have a shop compressor available to me as well buy I've heard that nitrogen has less maintenance needs

 

Dry air is almost 80% nitrogen. If your not driving a race car I wouldn't go out of my way or spend a dime on nitrogen.
A dryer on your compressor is more than adequate.
But having a bottle for off-road fills is cool.

 

X2