Discount Superstores. Some discount superstores with automotive centers have nitrogen for tires. Again, they may sell the tires and fill and refill with nitrogen for free, or they may fill a used tire for a fee.What is a Discount Tire?
Discount Tire. Discount Tire Company is a tire and wheel retailer owned by The Reinalt-Thomas Corporation, headquartered in Scottsdale, Arizona. Discount Tire is known as America's Tire in regions of California (except for San Diego County, where it is still known as "Discount Tire").