There is no "misrepresentation" here by Costco. Using one of their tire stations does in fact fill your tires with a compressed gas that is mostly nitrogen. T

There is no "misrepresentation" here by Costco. Using one of their tire stations does in fact fill your tires with a compressed gas that is mostly nitrogen. There is a potential "misunderstanding" by those who don't realize that ordinary compressed air is 78% pure nitrogen gas.