Tyres: 8 years old, 20k miles. Concern?

Soldato
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I've had these tyres from when I bought the car (63 reg Skoda Yeti) brand new. They've done a little over 20k miles and tread depth is fine, but they're almost 8 years old. Should I be concerned about the rubber perishing? They don't get a lot of sun where I park the car.
 
I've had these tyres from when I bought the car (63 reg Skoda Yeti) brand new. They've done a little over 20k miles and tread depth is fine, but they're almost 8 years old. Should I be concerned about the rubber perishing? They don't get a lot of sun where I park the car.

do the sidewalls looks in bad shape?
 
I would say yes. I think old rubber loses its flexibility even if it looks good. I've never seen it definitively tested though.
 
I think it's generally suggested by tyre manufacturers that you pay closer attention to condition on tyres older than 5 years and replace regardless if they hit 10 years old.

It's worth checking the dates on the tyres themselves too, whilst unlikely, they may be older than the car.
 
Check for radial cracks as well. I had some old tyres which looked fine from the side, but there was a crack growing all the way round.
 
Has the car been garaged? It's UV light which degrades rubber and causes it to crack, so cars kept in cooler, dark conditions (such as in a garage!) won't experience the same amount of degradation as ones stored outside, potentially in direct sunlight.

If the tyre looks in good condition, with no cracks in the tread or sidewall, it'll be fine. But when it reaches 10 years or so, it'd probably be worth replacing just for peace of mind. After all, tyres on a Yeti are likely to be, what, £50 each?
 
Hmm, our car is 6 years old and the full size spare has the new, original, tyre on it. Might be worth replacing based on comments on this thread.

As it’s not exposed to direct sunlight, a modern tyre shouldn’t really age whilst stored. Especially so if stored inside the vehicle under the boot floor as it will be shielded from extremes of temperature.
 
Finally ditched my pirelli p5000 drago's after 13 years and 40k miles on the back of my car. Tyres still had legal tred but were cupping and most of all were more like plastic than rubber so gave crap grip.
Rear tyres on front wheel drive car seem to last forever.
 
This is worth reading:

https://www.rac.co.uk/drive/advice/tyres/checking-tyre-tread/

TL:DR tyres with the minimum legal tread depth of 1.6mm can take up to 44% further to stop in the wet than tyres with 3.0mm of tread depth.

The key word is "can". Michelin have come out and said that there is no need to replace their tyres at 3.0mm as they perform the same all the way to the limit. If they didn't put faith in that claim, then it would be very strange, as I'm sure they'd rather sell you a new pair of tyres every time you hit 3mm
 
Hmm, our car is 6 years old and the full size spare has the new, original, tyre on it. Might be worth replacing based on comments on this thread.
I used my proper space saver on my 911. Proper as in you have to inflat it from scratch, and it was 15 years old. Didn't explode although I didn't really think about it at the time. Looked hilarious as it was the rear that I changed.
 
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