Age of "new" tires

Dale Davies said
Welll, problem comes up on size selection. Some collector car sizes do not sell quickly as compared to newer sizes. The tire store may have installed what is available to them. Both they and their supplier will be trying to sell older stock.
Now if the car is garaged outside of while being driven, the tires do not deteriorate the same as if they are out in the sun. The 7 year is kind of arbitrary and we need to consider tire shops are looking to maximize profits like everyone else. It is like you used to put "snow tires" on the rear for winter. Now some wet behind the ears youngster gives you the routine that it changes the handling charcteristics and their insurance won't let them do that. So you have to put all 4 on the same. Almost 70 years old punk, I know how to drive. My money says many of these youth will not make it to 65 these days.

That's the tire shops problem, not mine. Selling tires that are nearly half way through their time-life is shady, regardless of how they're stored. Because the tire shop will not look at those 7+ year old tires, say "they look good" and patch them if you pick up a nail later. They will point to the date, say the "rules" say they aren't allowed to service that tire, and tell you to buy replacements.

And, the car in question is not a collector car, it's a modern truck running what should be relatively common sizes.

I get the "profit margin" argument for the shop, but it's irrelevant to the buyer. That's the shops problem. And if the shop will sell you half dead tires, well, time to get a new shop.