JBarca wrote:
I wish the industry would come to grips with what is the age of that brand tire of when it needs to be replaced. Put it right in the documentation at the time of sale. For the average RV'er of trailers, thread wear and miles is not a good indicator as few of us ever wear out tire tread that have good axle alignment.
Thanks
John
There are many in the tire and rubber industries that would like to be able to put a definitive time line on tire aging. They are all - sort if - handcuffed by confidentiality. Those little secrets in the composition of a tire’s make-up are what complicates any time line. They are not going to talk about it, it’s confidential. Only a serious, substantiated quarry, from a ruling body will get a tire or rubber manufacturer to reveal any of the confidential compositions (mix).
To the public they may reveal a tire has a certain compound to prevent something. But, without knowing the specific amount of that something only they can make a prediction as to it‘s usefulness.
From the warranties I have read I think most of the top ten tire manufacturers will give ballpark figures about a specific tire’s age expectancy. But’ you’re going to be required to have the tires inspected by one of their experts. Cracking is always spelled out somewhere in the warranty. The type of cracking will be the key to recovering any adjustments.
Here is a warranty reference for ST tires used as OEM. Ozone caused cracking is covered.
TowMax WarrantyHere is a warranty reference for LT tires that does not cover Ozone cracking.
Michelin WarrantyFastEagle
