Dry Rot isn’t just a Michelin issue

[The Critic]

…contrary to what this forum likes you to believe.

Pirelli Scorpion Verde A/S Plus II, just under 20K miles. Tires were installed in early 2021, 2020 date code. 6-6.5/32” remaining on all 4. Car is parked outside 24/7.

Zoom in and you will see cracking in the grooves. This condition is more common with 4 year old tires, not 2 year old tires, but I think the southern-facing Sun exposure is the issue.

 

[Rand]

looks like they were run hot or get alot of gravel/sharp roads

There is no ZOOM in on bitog.. you need to Zoom in on the org. and add second photo of the detail section.

I'm not sure I'd call that dry rot Yet. maybe.. Weathering unless I'm missing something.

 

[The Critic]

looks like they were run hot or get alot of gravel/sharp roads

There is no ZOOM in on bitog.. you need to Zoom in on the org. and add second photo of the detail section.

I'm not sure I'd call that dry rot Yet. maybe.. Weathering unless I'm missing something.

No, just paved roads in our hilly area. All city driving, lots of turns. OE tires lasted 20-25K, these may go a little longer, but not by much.

 

[Rand]

That would make sense as that is the outside tread block and a front tire?

My kumho ku22's looked worse on the between the groove weathering at 2-3 years.

 

[WylieCoyote]

There's definitely some scrimping and saving going on when it comes to use of whatever chemicals that slow this type of weathering. These tires are 2 years old, been on the truck for a year and a half. I've never seen tires dry out this quickly.
Bridgestone

 

[The Critic]

Here’s a better look. Some of the wear on the outer blocks is probably alignment related, but the amount of aging for a 2-yr old tire is pretty surprising. I share the same feelings as @WylieCoyote - I wonder if companies are moving to a different compound?

 

[Trashman]

There's definitely some scrimping and saving going on when it comes to use of whatever chemicals that slow this type of weathering. These tires are 2 years old, been on the truck for a year and a half. I've never seen tires dry out this quickly.
Bridgestone

View attachment 114568 View attachment 114569 View attachment 114570 View attachment 114571

That's WAY too fast to be getting dry rot.... The first picture gives a clue as to why there may be a lack of quality. But either way, 1-1/2 years is ridiculous 😔

 

[4WD]

Here’s a better look. Some of the wear on the outer blocks is probably alignment related, but the amount of aging for a 2-yr old tire is pretty surprising. I share the same feelings as @WylieCoyote - I wonder if companies are moving to a different compound?

View attachment 114576

Root cause = eTorqture 👀

 

[MotorFan]

It's very possible they're using some 'eco-friendly' materials or process which shortens the product lifespan. GM is notorious for paint issues when they went to some water based formulation, and German cars are becoming notorious for very premature electrical system deterioration by using biodegradable wiring harnesses.

 

[The Critic]

Root cause = eTorqture 👀

😂

Nah, these are on the neighbor’s RDX.

 

[WylieCoyote]

It's very possible they're using some 'eco-friendly' materials or process which shortens the product lifespan. GM is notorious for paint issues when they went to some water based formulation, and German cars are becoming notorious for very premature electrical system deterioration by using biodegradable wiring harnesses.