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I am a retired engineer after working for Pirelli for 27 years. Tires may look great on the outside and be decayed on the inside. Tires continue to cure over the years which make the compound, especially the tread, hard and less pliable. I advise to replace tires at least every 7 years. I replace mine at 5 years even if they look “perfect” on the outside. I would rather replace tires than fiberglass.
I am a retired engineer after working for Pirelli for 27 years. Tires may look great on the outside and be decayed on the inside. Tires continue to cure over the years which make the compound, especially the tread, hard and less pliable. I advise to replace tires at least every 7 years. I replace mine at 5 years even if they look “perfect” on the outside. I would rather replace tires than fiberglass.
I'm all for changing my tyres around 10 years but every five years seems a bit over zealous. I just did all five on my new to me '65 Corvette that were 22 years old and looked great inside and out as I'm not willing to take the risk with the car or my health
I am a retired engineer after working for Pirelli for 27 years. Tires may look great on the outside and be decayed on the inside. Tires continue to cure over the years which make the compound, especially the tread, hard and less pliable. I advise to replace tires at least every 7 years. I replace mine at 5 years even if they look “perfect” on the outside. I would rather replace tires than fiberglass.
And a question for you Prysmian. On my yellow '71 (now sold) I ordered redlines online from a large specialist tyre supplier here in the UK and when they arrived they were already 3 years old. I complained of course but go nowhere they just stated they were stored in climate controlled conditions and out of sunlight so tough titty. Now as I did recently I always ask for the DOT to check when they were manufactured. So in this instance would you change them out after two more years then?
Tires in warehouse storage age differently than those in use. Tires that have been in storage still have probably another 4 to 5 years of life left because they have not been subjected to heat and other environmental effects that mounted tires in use are subjected to. They do continue to cure but much more slowly. Also for those that look at their 10 to 20 year old tires and determine they look OK, best of luck. I KNOW what is inside that tire you cannot see.
Its pretty simple. Most people will tell you to replace tires that old. Some people will tell you, “awww, thats an old wives’ tale.”
But it comes down to this… are you willing to risk your health and maybe the health of someone you care about, as well as risk damage to a car it sounds like you would like to protect? Just to save a few bucks on a set of tires? If taking the cheap way out is more important, then have at it.
If it were me and I wound up damaging my car, knowing I should have avoided it, that would bother me more than anything.
For the record I bought a car last year thats been in a climate-controlled building with a guy’s collection for 25 years The tires look perfect and have less than 2500 miles on them. The dates are 1991. They are the first thing that came off the car.