pokerpro

This past Friday I was detailing my ride (as I so often do) and when I started on the wheels I noticed all these dry rotted cracks. Now since my Z sits idle 90% of the time I do still have 70% tread life left on them. BTW the dry rot cracks are on all four tires.

I do have a new set of four as I believe in redundancy so they will be going on next Friday. I also heard Michelin has had this problem for a while but who knows. I am sending them back to be inspected then I'm supposed to be compensated by Michelin for another new set.

ruxvette

What's the build date on the tires?

pokerpro

Good question I didn't think to look. I know I purchased them in 2013.

Welker1

Haven't heard of this problem before and have had my Michelins on since 2012 with no issues. Since you are sending them back, would be curious as to what Michelin says caused the problem

enventr

Are these the runflats or standard tires? Good luck

pokerpro

These are non run flats Michelin PSS 345-30-19/285-35-18

Gearhead Jim

Michelin uses the name "Pilot Super Sport" to describe their entire line of high performance tires, even though some models (C7 base vs C7 Z51) are quite different from each other.

The C7 base PSS tires are not recommended below 40'F, but no problems noted except for poor cold weather traction.

The C7 Z51 & C7 Z06 PSS tires are not supposed to be moved at all below 20'F, and there are many reports of cracking at those temperatures.

Since your tires are not the stock Z06 sizes, I don't know what the temperature restrictions are.

It's not likely you would be driving below 20'F in Naples, but further north ???

More likely, you just got some bad tires and Michelin will replace them.

pokerpro

Cold temps are a non issue here. The earth would spin off it's axis before it ever got that cold here. Your right probably got a bad batch I'll report back when I hear Michelin's final determination.

RocketDawg

Well, now I've got to go out and check mine. I got them around the same time as you bought yours.

They might be out of warranty because of either time or mileage. Michelin's warranty on tires that cannot be rotated is half what it would be on standard tires. For instance, 30,000 miles turns into a 15,000 mile warranty on PSS tires I think. Not sure what the time limit is, if there is one.

NY09C6

The less tires are driven the more they are prone to cracking.

cmonkey713

When my car is out of service for the winter it is jacked up and supported at the proper points with jack stands so the tires are not in contact with the ground. the car is always stored inside a garage where the UV light is not a problem. Find the build date and ID numbers on the tires and contact Michelin and see what they say. You may get new or prorated trisect of it.

pokerpro

No that's not true, The Michelin PSS have a 30,000 mile wear out warranty. Additional to that there is a separate dry rot warranty as well. When i spoke with Michelin directly on Friday that's the way it was explained to me.

They also said in order for them to honor the warranty the tires would have to be inspected by an authorized Michelin dealer. There are a few tire chains and Sears here where I live that they said I could take my care to.

I very politely told them I would drive a rusty bladed knife through my chest before I let those balloon heads Touch my beautiful Z. So I'm bringing it to an exotic car dealer here in Naples who mounted them in the first place and who truly know how to treat these type of rides.

vettpapaw

The last 2 sets of Michelins I had dry rotted with around 30k miles. Never again!!!

ruxvette

If it's dry rot, its not the miles, it's the age.

windyC6

Guess this only goes to show that regardless of how much one spends on tires and how much of a great reputation any of the big manufactures have, they can still come out with a "Bad batch" from time to time.....

soupy102

Had the same thing happen to my Michelins on my truck and they paid for 4 new ones, only had to pay for mounting and balance They were about 2 years old with 5000 miles on them, Good luck

pokerpro

UPDATE: I heard back from Michelin today regarding what they were going to compensate me on my cracking PSS tires that I purchased in 2012.

Both front tires 50% each, right rear 60%, left rear 45%. They are sending me new rears 345-30-19 and two front 285-35-18 shipped to me $672.00. I think that's pretty fair.

buckmeister2

I would agree that is fair, and that they did right by you. All a manufacturer can do is make it right.

AORoads

about as good as you can expect; I think they did right.

HOXXOH

Glad you got it taken care of without a hassle. You might want to consider using nothing but soap and water on the tires when you detail them, to see if that makes any difference.

BTW, just for chuckles I ran the numbers to see how much time my car sits idle. I'm just barely under 95% even though I have 140,000 miles on it.