Well, it’s actually nitrogen, but it’s great. I think this was a new addition to our local Costco as I had never seen it before. It’s really easy to use and you can fill up your tires to the correct pressure in just a couple of minutes. First, remove all four of the little inflation valve covers on your tires, then select your desired tire pressure on the machine. If your tires are hot, they suggest adding 4 psi to the recommended pressure. Then go to each tire and press the nozzle securely onto the valve and release the locking sleeve. The machine will add or remove nitrogen to the exact pressure you selected. It just takes a few seconds per tire.
Just another reason to shop at Costco!