How old of a tire would you feel comfortable running on your DD? Long story short I have a tire that was taken off a new ST when I worked at Ford due to a nail. Turns out the nail didn't puncture the tire so I brought it home and put it in the garage. The time has come for a new set of tires on my ST and I'm thinking of just ordering 3 more goodyear f1 to match the one I already have. Date code is 13/18. Like I said was previously mounted on a new vehicle and taken off before delivery. Order 3 tires or play it safe and order all 4 and trash the one in my garage?