At Escapee's Boot Camp (which I highly recommend) in Gila Bend in February, we attended a nearly 3 hour course on tires and tire safety. My coach tires were 9 years old. I immediately drove to Tucson and shopped for tires. The best price for my tires, 19.5", was Michelin at Costco. They had to order. I discussed the date they were manufactured when I ordered and Costco said they had no control over the date of the tires when the distributor shipped, but if I was not satisfied I did not have to accept. They were all within 6 months and I was satisfied.
