Yes, you can use nitrogen or plain air.
Sure. There is no logical reason not to mix it. Regular air is mostly nitrogen anyways.
Mixing nitrogen and regular air in tires will dilute the benefits of having pure nitrogen-filled tires, such as more stable tire pressure and reduced oxidation of the tire components. It may still provide some benefits over using regular air alone, but the advantages won't be as pronounced.
yes nitrogen would be good or you could use regular old air which is about 70% nitrogen anyway!
Many industrial supply companies will sell you compressed tanks of dry nitrogen that would be suitable for tires. For normal auto tires, regular air is fine, but nitrogen is often used to inflate the tires of race cars and airplanes.
Aircraft tires can be filled with regular compressed air, however pure nitrogen is also often used.
The rubber used in tires is somewhat more permeable to oxygen than it is to nitrogen, so inflating tires with nitrogen keeps them at their recommended inflation pressure longer.
Yes, nitrogen is more stable than air in tires.
air
I think it is Nitrogen. The normal air mixture pumped into regular road cars is not efficient at high speeds and will lose pressure easily. If that happens there could be catastrophic consequence at high speed. That is why they use nitrogen If you pump nitrogen into the tires of your regular road car, you need not check tire pressure for 3 months.
Air. Nitrogen in the tires.
Air is 78% nitrogen, and most tyres are inflated with air, so mixing pure nitrogen with air would not be a problem.
Nitrogen , check out this site, http://www.getnitrogen.org/ Typically, plain air. Nitrogen is used in high-performance racing tires and in large aircraft tires.