Michelin Treadlife

[Kamauxx]

Greetings Stinger fans.

I took my stock MPS4 off the car yesterday. The tires have 11,500 miles on them.

Each tire was inflated to 35 psi cold as recorded by the car's TPMS (one psi under the recommended pressure).

When I check the tires with my tire guage they each measured around 32-33 psi cold.

Taking a look at the rear tires the tread is noticeably more worn in the center, which should indicate OVER-inflation. That is strange because I'm certain the tires are slightly UNDER-inflated.

Here is what one of my rear tires looks like.

I figure another 2 or 3 thousand miles and the rear tires would have been done for.

I'm curious has anyone got their tires to 15k + miles yet? And what does the tread look like? And what does your TPMS say compared to a normal handheld pressure guage (if you have one)?


Oh, also found a nail in one of the front tires. Not sure how long it's been there but it looks like it may be massive.

 

[MerlintheMad]

A nail that holds air. Amazing.

I must be a noob. I can't tell that the center is worn more than the edges. But that looks like tread that has seen a lot of wear. Are you a fast cornering, rapid accelerating maniac, by any chance?

 

[ZyroXZ2]

The way the tire wears has many more factors than just inflation, though your pic is too close to truly verify the wear profile (you should take a further away pic from parallel to the tread pattern as opposed to perpendicular to it). My bet is that this car's alignment specs from the factory are why the center of your tire is wearing that way even though you're underinflated all the time. Also, since these tires are fairly thin walled, you're not going to have the amount of bulge differences when under/over inflating like you would on, say, a large walled truck tire. These tires remain fairly the same shape whether you're under or over: you'd have to unintelligibly violate safe pressures in either direction to appreciably change the contact patch shape with the road.

Long story short? Stick to factory recommended pressures. If your tire continues to wear this way, look at your alignment or other suspension factors because it's unlikely this is being caused by under-inflation.

 

[Kamauxx]

A nail that holds air. Amazing.

I just went out to see it and it's gone. I think it must have been a roofing tack. But it left a pretty good hole.

 

[Kamauxx]

The way the tire wears has many more factors than just inflation, though your pic is too close to truly verify the wear profile (you should take a further away pic from parallel to the tread pattern as opposed to perpendicular to it). My bet is that this car's alignment specs from the factory are why the center of your tire is wearing that way even though you're underinflated all the time. Also, since these tires are fairly thin walled, you're not going to have the amount of bulge differences when under/over inflating like you would on, say, a large walled truck tire. These tires remain fairly the same shape whether you're under or over: you'd have to unintelligibly violate safe pressures in either direction to appreciably change the contact patch shape with the road.

Long story short? Stick to factory recommended pressures. If your tire continues to wear this way, look at your alignment or other suspension factors because it's unlikely this is being caused by under-inflation.

Well they're done for now. I was hoping to sell them but the rears aren't worth my energy.

But here's a better shot of the rears at just under 11,500 miles, for reference.

 

[MerlintheMad]

Well they're done for now. I was hoping to sell them but the rears aren't worth my energy.

But here's a better shot of the rears at just under 11,500 miles, for reference.

The diagonal lined strip is the inner strip. So, slight camber in at the top, I'm seeing. The center strip is plain. To my eyes the wear looks pretty even; if rather unimpressive, if your goal is to get c. 20K miles out of them.

https://www.michelinman.com/img/sto...mise-plan_limited_mileage_warranties_2016.pdf
This is taken from a Michelin PDF copy of their warranty mileage:
Pilot® Sport A/S 3 H/V/ W/Y All-Season 45k
Pilot® Super Sport Y Summer 30k
Pilot® Sport PS2™ Y Summer 20k
Pilot® Sport 3 Y Summer 20k

So, the summers are rated a lot lower than the AS. But still way more than 12K miles, which is about all you're getting out of yours. I have close to 8,700 miles on mine. The fronts have twice as much tread as the rears, and I have c. twice the tread on my rears as you show. So, you are a more "spirited" driver than I am, maybe?

In order to get the rated mileage out of these, it seems that we must corner like a granny. The "Ultra-High Performance Sport Tires" description is for top speed (thus the "Y", for 186 MPH+) and has nothing to do with cornering proclivities.

I wonder how the warranty works when you take the tires in at c. 12K or even 15K miles on them and they are clearly worn out?

 

[NS_Stinger]

The diagonal lined strip is the inner strip. So, slight camber in at the top, I'm seeing. The center strip is plain. To my eyes the wear looks pretty even; if rather unimpressive, if your goal is to get c. 20K miles out of them.

https://www.michelinman.com/img/sto...mise-plan_limited_mileage_warranties_2016.pdf
This is taken from a Michelin PDF copy of their warranty mileage:
Pilot® Sport A/S 3 H/V/ W/Y All-Season 45k
Pilot® Super Sport Y Summer 30k
Pilot® Sport PS2™ Y Summer 20k
Pilot® Sport 3 Y Summer 20k

So, the summers are rated a lot lower than the AS. But still way more than 12K miles, which is about all you're getting out of yours. I have close to 8,700 miles on mine. The fronts have twice as much tread as the rears, and I have c. twice the tread on my rears as you show. So, you are a more "spirited" driver than I am, maybe?

In order to get the rated mileage out of these, it seems that we must corner like a granny. The "Ultra-High Performance Sport Tires" description is for top speed (thus the "Y", for 186 MPH+) and has nothing to do with cornering proclivities.

I wonder how the warranty works when you take the tires in at c. 12K or even 15K miles on them and they are clearly worn out?

I think you have to jump through a bunch of hoops for a warranty claim and if it gets approved they calculate how many miles you got out of the tires against what youre supposed to get out of them and give you the difference in credit or payment for a replacement.

For example customer got 5 miles out of a 10mile tire, so customer got 50% of the value on the tire. The tire new is valued at $200 so customer got $100 dollars worth so theh cut check for $100 back to you.

 

[MerlintheMad]

I think you have to jump through a bunch of hoops for a warranty claim and if it gets approved they calculate how many miles you got out of the tires against what youre supposed to get out of them and give you the difference in credit or payment for a replacement.

For example customer got 5 miles out of a 10mile tire, so customer got 50% of the value on the tire. The tire new is valued at $200 so customer got $100 dollars worth so theh cut check for $100 back to you.

That's pretty fair. How many hoops do Camo and I have to jump through to get our percentage off a new set of tires?

 

[NS_Stinger]

Well I think you have to show proof of regular recommended tire rotations but with this being a staggered platform im not sure how that works. I have a friend that gave up trying to deal with claiming a warranty with them because he said what they wanted him to do wasnt worth the reward. Im sure theyre probably pretty responsive via email though, never hurts to inquire.

 

[Waynerm002]

I read somewhere that in a staggered setup, the tire warranty is halved since you can’t rotate them.

 

[MerlintheMad]

I read somewhere that in a staggered setup, the tire warranty is halved since you can’t rotate them.

Yuk. That makes sense too. I guess I won't worry about it anymore, and just drive my car the way I want to, and buy more tires than I ever have before in my whole life, added altogether!

 

[Callum]

FWIW:

I just hit the tread wear bars at 5,000 miles. I'm used to consuming tires quickly on AMG's, but common...

 

[robz32]

I replaced my two rears at 18k miles. Same worn spot, in the center. Fronts were still perfect.

There's a reason why they call it the fun pair

 

[Kamauxx]

Anyone just buying a Stinger should sell the tires when they're new and buy a set of UHP summers with better wear ratings.

 

[Callum]

I'd assume the AWD balances tread where, but my fronts looks brand friggin new. However, the AWD with slightly worn 4S's is pretty fun to slide around!

I'll throw a set of R888's on the Stinger in the spring.

 

[DaBears4Lyfe]

swapped my tires around 12k and yes the rears only have about 25% life left. pretty even wear though.

 

[Dick Dastardly]

Just swapped my tyres at just under 18K miles.
Rears were nearly at wear indicators, fronts were slightly better.
All worn fairly evenly, fronts slightly worn more on outer shoulders. All blown to 36 psi from cold.
Rather anal when it comes to tyres (like brakes) so swapped all 4.
Previous were ContiSport 5s which were good. Moved to Eagle F1 Assymetric 3s. Smoother ride slightly better rear end grip (?).

 

[compujas]

12k miles, or even 18k, seems short to wear out a set of tires with a treadwear rating of 320, even when staggered. My Gen Coupe came with RE050's which were terrible and had a rating of only 140 and I'd get 15-20k out of them, and they were staggered directionals as well. The PS4's should be able to get double that just based on the rating. I eventually switched to RE980's instead, but mostly because I couldn't live with not being able to drive it in the winter any more so needed all seasons. Those have a rating of 500, but I only drove about 4000 miles on them before I traded it in for the Stinger.

 

[Kamauxx]

12k miles, or even 18k, seems short to wear out a set of tires with a treadwear rating of 320, even when staggered. My Gen Coupe came with RE050's which were terrible and had a rating of only 140 and I'd get 15-20k out of them, and they were staggered directionals as well. The PS4's should be able to get double that just based on the rating. I eventually switched to RE980's instead, but mostly because I couldn't live with not being able to drive it in the winter any more so needed all seasons. Those have a rating of 500, but I only drove about 4000 miles on them before I traded it in for the Stinger.

I was pretty surprised when I took mine off at under 12k and the rears were nearly bald in the center. Especially since I drive like an old person. My current tires are 320 treadwear too but people are getting a lot more than 12-18k miles out of them.

 

[compujas]

I was pretty surprised when I took mine off at under 12k and the rears were nearly bald in the center. Especially since I drive like an old person. My current tires are 320 treadwear too but people are getting a lot more than 12-18k miles out of them.

Yeah, it is surprising. I was ok with it on my old car because the dealer gave me free tires as long as I did the maintenance there. Tires were $1,000 a set, so I was ok with paying $35 for an oil change. They tried to fight me on it at first though when they said only two tires needed to be replaced because I didn't rotate them. I told them that they were staggered, then they said that you can rotate side to side, so I said they're also directionals. They said that was only for the Track version. I said what do you think that car is? Then they replaced the tires and never questioned me again the next 5 or 6 times.