I just went through a similar exercise. Tires over 6 years old, good tread, no real sign of dry rot and then came to "and my son drives it". I replaced the tires and sleep well at night.
Tire Dry Rot or Not
One of our vehicles has Michelin Defender tires with close to 50K miles on them. The tires are 6 years and 3 months old. Tread is 5 - 6 32nds. Since the car will be around longer than the useful life of the current tires I figured I would just replace them now. I'm also curious if any of the photos show dry rot. Dry rot photos online typically show tires with far worse but figured I would share here for some feedback.
Thanks
Thanks
