I wasn't even paying attention to the label, LOL. I was contemplating whether to add some tire dressing but thought it would be a waste since most of it would just soak into those cracks. The cracks in the tread behave like sipes and have actually increased my traction in light snow. Just kidding... not about the traction, but about actually driving in the snow.

I probably have more like 5/32". Only 23K miles on them. The tires were born 8/2003. The one in the picture was plugged from the outside on my first day of ownership 12+ years ago.

Not to worry. I seriously do plan to replace them in the next few weeks.

I would make the argument that tires, in particular high quality performance tires like the PS2, are so highly engineered that the looks can be quite deceiving. The vast majority of all the attention on tire failures, even those related to tire age, are probably the result of driver errors and simple lack of attention to tire pressures, tread wear, and structural damage, not how crazed and cracked, often only cosmetically, the surface of the tire may be. Obviously, my tires are a bit extreme looking, and I would not trust them on the track or in a high speed corner, but I'm not really worried about driving around town until I order new ones.