I've had my winter tires since 2004. Although I only have about
17,000km (10,000 miles) on them and the thread still looks pretty
good, this is my 5th winter with these tires and I'm wondering if I
should get a new set for next winter. Basically, do tires dry out over
time and become less efficient? I keep them in my garage over the
summer, not near any electrical motors, etc.
They're fine. Don't worry about them.
Tires do dry out over time, but 5 years is still OK. If it were me, I might
replace them in maybe three years or so. And by then the tread may be down
to the point where you'd be replacing them anyway.
This time I disagree with Tegger. 5 years is close to max and may be
too long. Oxidation and aging takes a toll.
Besides, a winter tire needs at least 6/32 tread depth to work in
snow. That's 3X the minimum tread depth of standard tires. Be a sport,
spend $2 and measure tread depth with a proper guage and let us know.
I'll bet after 10K miles you are pretty close to 6/32.
tires can fail due to rubber flex agents outgassing, and drying the tire.
production dates while well hidden are printed on most tires, it is cryptic,
but it is a series of numbers....located usually on the inside, the last 4
are the production period 0202 would mean 2nd week of 02. Tires are not
supposed to be sold after 6 years due to rubber compound changes (dry rot).
Most tires are sold years after production...especially from bargain low
volume outlets...they should always be replaced approximately 6 years from
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