Tire Rack’s tech articles will tell you that tires are good between six and 10 years and that properly-stored new tires age very slowly, extending ultimate service life.
It’s likely a valid point but if I’m paying for new tires, I’d like them to be less than a year old—or discounted.
If not, it’s clearly noted on the registration and insurance documents in the glovebox.
When it comes to the food we enjoy at home, we know that if something doesn’t taste or look right that we can check the expiration date on the package. There’s a four-digit code stamped on the sidewall of all tires sold in the USA since 2000.
I went with a set of Dunlop Winter Sport 4D winter tires because I ran them on the FR-S and enjoyed the balance of snow grip and dry-weather handling.
When my winter wheel and tire package arrived from Tire Rack, I checked the sidewalls and noted a ‘3414’ stamp—manufacturing date of August 2014.The manufacturing date of a tire is incorporated into an 11 digit code, called a TIN (Tire Identification Number) located down by the bead of the tire.The only exception would be most Pro Drag Radials, which do not incorporate traditional TIN’s.For many drivers, my OCD approach to tires isn’t applicable as they’d likely wear out the tread on their tires before age becomes an issue.Plus I don’t think 99% of people have a clue about tire age.