You can check manufacturing date from the stamp on the side of tire. Stamp shows the week and the year tire was manufactured. Look for 4 digit number inside rounded rectangle. For example, if you see 4007 it means tire was manufactured on the 40th week of 2007. SImilarly if it shows 1208 it was manufactured on the 12th week (early March) of 2008.
Should tires be assigned a shelf life, like groceries, milk or eggs? A safety research group says aging tires develop cracks or weaken when they sit around unused.
Tire makers in Britain have just issued a warning to consumers. Replace tires that are more than ten years old, even if the tread’s not worn. And for a tire that hasn’t been used, like a spare, replace it after six years.
Reviewing U.S. lawsuits, the research group says that many accidents involved old tires. According to strategic safety expert Sean Kane, “we’ve been able to document in a very short period of time at least 20 cases involving serious injuries and fatalities in the United States, and we’ve only scratched the surface of this issue here.”
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
but read this one:
Shelf life not the answer
But the U.S. tire industry says a shelf life is not the answer. Donald Shea of the Rubber Manufacturers Association said: “What it is is a complex series of events that can make a tire deteriorate. One, is the amount of mileage; two is the abuse it takes on the road; third and perhaps most important is the maintenance that is given or not given to the tire. If the public gets the impression that they could continue to use a tire until that use by date that could send clearly the wrong message.”
When the NHTSA proposed an upgrade to new tire standards it also proposed an aging standard. That was deferred for two years because no one could agree on a reliable test that could artificially age a tire. The NHTSA is in the process of determining which test is best and hope to have research done by next summer.
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We should always purchase good quality tyres like Michelin as they are of good quality and long lasting.
You can check manufacturing date from the stamp on the side of tire. Stamp shows the week and the year tire was manufactured. Look for 4 digit number inside rounded rectangle. For example, if you see 4007 it means tire was manufactured on the 40th week of 2007. SImilarly if it shows 1208 it was manufactured on the 12th week (early March) of 2008.
from the web...
Should tires be assigned a shelf life, like groceries, milk or eggs? A safety research group says aging tires develop cracks or weaken when they sit around unused.
Tire makers in Britain have just issued a warning to consumers. Replace tires that are more than ten years old, even if the tread’s not worn. And for a tire that hasn’t been used, like a spare, replace it after six years.
Reviewing U.S. lawsuits, the research group says that many accidents involved old tires. According to strategic safety expert Sean Kane, “we’ve been able to document in a very short period of time at least 20 cases involving serious injuries and fatalities in the United States, and we’ve only scratched the surface of this issue here.”
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
but read this one:
Shelf life not the answer
But the U.S. tire industry says a shelf life is not the answer. Donald Shea of the Rubber Manufacturers Association said: “What it is is a complex series of events that can make a tire deteriorate. One, is the amount of mileage; two is the abuse it takes on the road; third and perhaps most important is the maintenance that is given or not given to the tire. If the public gets the impression that they could continue to use a tire until that use by date that could send clearly the wrong message.”
When the NHTSA proposed an upgrade to new tire standards it also proposed an aging standard. That was deferred for two years because no one could agree on a reliable test that could artificially age a tire. The NHTSA is in the process of determining which test is best and hope to have research done by next summer.
MRST2009 thanks for the joke early in the morning.
Shelf life for tires is 2 years, 60,000km or 3 years is after you mount them.
shelf life:
http://www.foodprocessing-technology.com/glossary/shelf-life.html
about tire shelf life:
http://www.msnbc.msn.com/id/3088188
http://www.advrider.com/forums/showthread.php?t=459895
one said he had over 5 year old tires mounted and they are perfect for a few years...
it is not the km you drive it is how you drive and they are work out
it is also not the years... again it is HOW you drive and they are worn out.
but before you mount them they have to be save..
I try to google and no one has a 100% correct answer to this Q..
but at the end they have to be save so just dont by old tires, it is your safety buy fresh new and crispy not spoiled tires and be save.
3 years
2 Years or 60000kms it will be safe to change the tyres after that.
OMG
Daniel no one told you to stop eating car tires ?
No.. hmm they very likely do not come with a shelf life coz they are meant for your car to drive not for you to eat.
ok joke aside
I dont think they have this as they can not go spoiled, rotten or so on..
they can brake or something due to wrong storage, handling but again this got nothing to do with shelf life
if you go to a shop and the tires are in the sun for the past 8-10 years without moving I would be suspicious if they are still save to drive
(Again this got noting to do with shelf life)
Tires might become unsafe, broken but not rotten or spoiled..
I hope this helps