There has been some controversy about dealers selling aging tires that have been on the shelves for too long. They find the compounds deteriorate and soon render them unsafe. Do you know how to read the date on the tire?
Look at the DOT number and the last four numbers is the date of manufacture. Yesterday while getting my new tires, I asked to see the particular ones I would receive. The last four numbers were 2305. That means the 23rd week of 2005. Easy enough but not everybody knows about it.