tires only have a lifespan of 6 years*

[owyn]

here's an investigative report by an american news channel :

http://abcnews.go.com/Video/playerIndex?id=4826897

Ok, the tone is a bit too conspiratorial (complete with a crusading lawyer) but i do keep reading in the net that ~6 years is just about right. Reading the manufacturing date is pretty straightforward actually.


The take-away/ lesson on this one is check when buying tires, and chuck out tires even with lots of treadlife if it's too old. (Heck, even my GT champiros have signs of dry rot * 3 years from the DOT date. Michelin XM1s at same age looks fine tho.)

It's a somber, somber lesson to learn dahil buhay ang nakataya

[1D4LV]

^^ true true... it was discussed here lots of times already.

[theveed]

Here you go:

Tire Expiry Thread

[Type 100]

TireRack.com has a lot of helpful articles and one of them does mention tire longevity. They state that at the 6-10 year window tires should be considered for replacement already.

High-performance tire rubber is more easily degraded by age compared to comfort-biased, economy-biased or mileage-biased tires, so they need to be replaced earlier (around the six-year mark).

Some websites, like Chris Longhurst's Car Bibles, advise a strict replacement at six years after the tire's manufacture date, stamped on the tire sidewall.