Nitrogen for Tires - pros/cons

[8e3k0]

Air is 78% nitrogen already. Do they pull a vacuum on the tire then put nitrogen in to get an accurate 100%? Are you really getting 100% nitrogen? Do they have the proper equipment to make and compress nitrogen? I don't think so. These are the questions to ask the dealer/supplier. Lots of stuff on this, many people pay the price for nitrogen and then some one tops up with air. I will continue to run with air and correct pressures with no problems.