When to change tires?

[thstone]

I've never had any tire last 5 years but if I did, I would replace them at that age.

Otherwise, like Topless I drive street tires to the wear bars and track tires to the cord.

[opus69]

The Pilot Sports on my 2002s were fairly new when I bought the car 2 yrs ago. I only got 12,000 miles out of them. My wife has them on her Acura and she only gets about 20,000 out of a set. The rear tires on the Boxster were pretty much slick by the time I replaced them. I usually do not let tires go that far before replacing them. The front tires were still in good shape with a lot miles left in them so I did not notice how slick the rears were. I replaced tires with the same all around and with Pilot Sport Cup. These tires are like glue on dry pavement, but from what others have said I am apprehensive about driving with them in some of these torrential downpours in Florida. I don't expect these to last very long due to the very thin tread profile and will probably compromise next time and go with the Super Sports.

[Ghostrider 310]

The bridgestones the Spyder came with surprised me as they are better than I expected. Still, they are wearing faster than Michelins and to my shock cost more than Michelin tires at tire rack. I hope to get at least 12K out of them and when they go, it's Pilot Sports back on my car.