When it was coming time to park the Shelby for the season, the passenger side rear started getting a slow leak. Had them check it out when I got the season ending oil change and detail, and it turned out there was a screw in the corner where the tread meets the sidewall... so they couldn't repair it.
Unfortunately, my tire size is not readily available until spring! I jumped up to 295's when I made the change to the Michelin PS4S tires - they only had 285's. I do not want to go back down to 285's, so I have to wait until spring to replace. The problem is, I wasn't making it more than a few days before tripping the pressure sensor and needing to add air, sometimes as much as 10-15lbs before I could get to it. Obvious concern is a flat tire before spring arrives and damaging the rim getting it out of the garage to deal with it (when the car is in the garage, I have it parked with literally an inch or 2 from the passenger side mirror to the wall).
Since I parked it... I've been looking at that tire daily to see if it was getting low, or if I needed to get air into it at some point... probably having to pull it out into the driveway to do so... but I must have had fate on my side when I parked it this time, and it's sitting just right for that screw not to cause issues, because here we are over a month later and STILL the tire is full, and the pressure sensor wasn't even tripped when I gave it it's first full heat-cycle of the winter yesterday!