So I ordered my wife four new tires over the internet so I could get the LRR option for her car. They arrived via UPS in two bundled pairs and other than checking to see that they were the specification I ordered I thought nothing of it and had them installed by my local Belle Tire. It was cold and frosty when we were driving to church and the tire pressure monitor went off, so when we got home I filled them up. That was when I noticed something odd, all four tires were pristine from the dealer, bute when I looked at the manufacturing date three of them were shipped a week after manufacturing, but the fourth tire is five weeks older.
I know it won't make any difference in a real world sense because they were all manufactured by Continental this spring and summer and they are going to be regularly rotated for their 70,000 lifespan, I just thought it was odd.
It got me thinking so I checked the tires on my car which has two matched pairs manufactured together. I bought them in pairs so that was no surprise, but when I checked my spare I discovered it has rubber dry rot and was made way back in 1996

. My spare is actually older than the rest of the car lol, and has developed a slow leak and now that I know how old it is I am going to be looking to replace it even though it has a decent amount of tread life left. Repairing an 18/19 year old tire just as a spare seems silly, I don't drive all that much these days.