Original spare tire still good 13yrs later?




out of curiousity tonight I opened up the trunk and wanted to check if the spare was a full size tire and was pleasantly surprised to see a Michelin pilot sport tire brand new in there.
Any concerns with using a tire that old (although still new condition) and installing it as a permanent tire matches it up with 3 other new Michelin pilot sports that I am planing to buy???
Assume the rubber doesn't go bad sitting in the trunk....
If you haven't checked the air pressure in the last 9 years, the spare is flat by now anyways.


