A few months ago I took my Y to the service center & was told I had a nail in the sidewall and it was not repairable. So, I purchased a new tire. A few months later I had another nail in the thread which was repaired. Recently, I had a very slow leak and was told that it was a very small nail. I was then told because they did not have my tire in stock it was suggested that I go to a tire service center i.e., pep boys to plug it. The Pep Boys tire center found the small nail in the middle of the tire thread & plug it. So, now it leaves me wondering if I really need a new tire the first time when I was told it was a nail in the sidewall. I would have definitely been taken for the second new tire if it was available.