Recently purchased a set of FIRESTONE tires from an authorized dealer in CO . Was informed that maintenance and any concerns could be addressed at any Firestone Service Center. Found a screw in one of my brand new tires, NOPE , non repairable so it wasn't guaranteed. THEIR OWN PRODUCT!! I had to purchase yet another tire!! Discount Tire and Big O Tires guarantees ALL purchases, no matter how old or worn or damaged the tire. Will NEVER have anything to do with Firestone ever. I thought this was a reputable tire company? What kind of service is this!?