<VV> Tire shelf life

Hugo Miller hugo at aruncoaches.co.uk
Mon Jan 20 17:17:37 EST 2020

Tire manufacturers are obviously going to be ultra-cautious, both to 
cover their backs and to sell more tires! I wouldn't think twice about 
using 5 year-old tires.

On 2020-01-20 20:09, Jim Simpson via VirtualVairs wrote:
> Tire life is a fraught subject and just like many other things, there 
> are
> about as many opinions as there are people.
> The tire makers all seem to have come down to a max *servic*e life of 
> six
> years and most say that 10 years from manufacture (storage plus
> on-the-road) is end of life.
> The problem is that even in cool, dry storage with no sun, there's 
> still
> oxygen and some amount of ozone that will affect the tire.  And if 
> the
> humidity was high and the temperatures were cycling in the warehouse, 
> then
> the tires were aging right there on the shelf.  And there's really no 
> way
> of knowing.  Not only are they losing traction due to the hardening 
> rubber
> but the bond between rubber layers and to the tire cords is 
> weakening.
> Of course there are many stories of people driving on 10, 15 and 20 
> year
> old tires and having no problems.  The bottom line is that it's your, 
> your
> passenger's and the surrounding driver's lives.  Want to gamble?
> Jim Simpson
> Group Corvair
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