When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I have tires on my car (BF GOODRICH RADIAL T/A's) that are at least 5-6 years old. The probably have only 5000 miles on them. I have heard that tires lose their "stickiness" or that the compound hardens as they age and that even though my tires are not that used, they are probably not as good as a new set. Is this true? Does the rubber really age, or is that a myth?
Did they start to dry-rot yet? I have Old Dunlops (came with the car), the tread is very good, but the side walls are dry-rotting. New tires are on the way...
If they haven't dried or cracked you should be OK. The tires will go bad but if they are in a controlled environment (like a nice garage) they'll last a good long time.
It's not so much the time, but heat cycles that deteriorates the rubber compound. Radial T/A's don't have a sticky compound to begin with, so you probably won't notice much change, unless you took a brand new set and compared it to a worn set. It also depends on what kind of driving you are doing. If it's just burn outs and drag racing, then there won't be that much difference, but auto-cross driving will definitely show a difference; but, if you want performance the the Radial T/A's aren't really the right tire for you.
followed by some exfoliation and botox... :jester Hell, I dont' even know what exfoliation is...
Annnyway, as I understand it, there are several schools of thought on this, at least with racing compounds, according to Secret of Solo Racing. I dont' remember if there were more, but the two already mentioned (number of heat cycles, time since first use) were held as equally valid.
As with most everything, it's probably a mixture that depends in some way on circumstances.