So just today I found out my Subaru Forester 2006’s rear-left tire was flat. Filled it up and took it to Firestone nearby and they found a nail lodged in the shoulder of the tire. Since this cannot be patched and must be replaced, and although I understand AWD’s should have all four tires swapped out when a blowout occurs, I got these tires new just about 5 months ago and put not even 4,000 miles on the car with them.
Could I get away with just replacing the one blown-out tire with the same model, should I replace both on the rear axle, or does the amount of use on them not matter and all four should be replaced anyway? Thanks.