I need some tire advise. I have 20" Pirelli P Zeros on my 2018 C4S w/rear axle steering. The tires are the originals since the car was put into service 07/2018. I have 17.5K miles on them, and they seem to be wearing evenly. The car has not been tracked. The tread marker bar is still below the surface of the tire treads. One rear tire is now losing air. Replace all, or just patch the leaking tire? Is 17.5K miles reasonable wear on these P-Zeros ? Thank you !

 

I get 8-9k miles on my tires before needing to replace them. Definitely we must be driving differently. I'd say change tires unless you use the car for cruising, shopping and daily, in which case you won't be subjecting your tires to a lot of stress and a "patch" will be fine.

 

this seems like a lot of mileage for p zeros...

 

First off your tires are ~6 years old and should be replaced-recommendation. Lots of great tires out there. For me personally I like the P-zeros best.

 

Take a good look at the inside of the rear tires. They should be looking bad by now, you may even see the steel belt coming through. This is hard to spot, so get yourself in a position where you can see the inside of the tires.

 

this.
plus the OP got great mileage out of them. I would get all new ones. As some of the posters said , many options. There is no one best one. I switched to the Michelin PS4S after stretching to 20k . Backs were much worse than fronts obviously. May go back to the P-zeros next time.

 

Dealer wanted them swapped out LY..but with such good tread remaining I was hesitant. Agree, new shoes now.

 

And believe it or not dealers are very competitive. The P4Ss my choice. Lots of threads out there. Well done on the tires. I got 18k on my P Zero fronts but about 1/2 that on my rears.

 

Porsche stock camber setting wears the inside of your tires out. If you don't think camber wears your tires think of it this way. How do you turn a motorcycle or bicycle? you lean. When you have negative camber you are driving the car towards the side with least negative camber. If you have more than .5 degrees different in camber your car will pull. When both cambers are the same, there isn't a pull BUT two tires are fighting each other, do not think two tires constantly being driven against each other doesn't accelerate wear. Unless you track regularly have your rear camber set to -1.0 degrees max and front as low as you can get -.5 degrees. You will see substantial tire life improvement.....