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Age of Goodyear Eagle Supercar F1 tires

 
Old 11-18-2011, 03:01 PM
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quick04Z06
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Default Age of Goodyear Eagle Supercar F1 tires

How can I tell the age of these tires? I have found a set that look to be in great condition but I cannot tell how long they've been "sitting around." Any suggestions?
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Old 11-18-2011, 03:10 PM
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Old 11-18-2011, 04:28 PM
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Old 01-30-2012, 04:13 AM
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I was aware of the DOT tire manufacture date codes, but for the life of me, I couldn't find them on my F1 Supercars anywhere!

All 4 are mounted with the right side facing outwards. I found this picture online of a Supercar tire:
http://www.productwiki.com/upload/im...1_supercar.jpg

And I can plainly make out the DOT code. But I swear that isn't there on my version of the tire. I'm so spooked I'm gonna go check tomorrow. I was checking at night in a gas station so maybe I missed it.
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Old 01-30-2012, 07:36 AM
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Originally Posted by kimbo305 View Post
I was aware of the DOT tire manufacture date codes, but for the life of me, I couldn't find them on my F1 Supercars anywhere!
They aren't always on the outside. I haven't figured that part out yet, but even directional tires don't always seem to have them on the same side.

I'm not a fan of tires more than 5 years old, especially on a Corvette. Don't just go by looks - just because there are no cracks in the rubber doesn't mean that the compound is the same as it was when it left the factory. It is definitively harder and has less traction. Period. You may not notice it in a straight line, but if they break loose easily or if the car doesn't seem as stable around turns I'd consider looking at swapping them out.

It's not so much just driving around on 5 year old tires that should concern you it's potentially NOT having control during evasive maneuvering / stopping that is the reason you should always consider updating 'older' rubber.

Kurt
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Old 01-31-2012, 12:31 AM
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I thought even if the full code isn't on one side, then there still needs to be a DOT mark on it? I can't even find that.

How many generations of Eagle F1 Supercar have there been? Just 2, I thought. Mine look like the first gen model as shown on Tirerack:
http://www.tirerack.com/tires/BigPic...le+F1+Supercar

Pardon the rotor rust -- I haven't driven it in a week. Hard in the middle of Boston winter.
https://lh4.googleusercontent.com/-u...hoto%25204.JPG
https://lh5.googleusercontent.com/-O...hoto%25203.JPG
https://lh5.googleusercontent.com/-1...hoto%25202.JPG
https://lh3.googleusercontent.com/-3...hoto%25201.JPG

What I've tried to do is take a few shots of the tire at the place where I expect the DOT marker to be, based on where it is in the Tirerack image, judging relative to the placement of the word "Supercar."

There's just nothing like it on my tires. I checked all 4. And unless I'm nuts, I think they're facing outward and properly mounted. Maybet it's still a different version of the tire?
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Old 01-31-2012, 08:17 PM
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Here's two full shots of the front and rear on the right.
http://i.imgur.com/jbzML.jpg
http://i.imgur.com/86ukH.jpg
You can see the mark that says this side faces out. But no DOT code.
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Old 12-19-2017, 08:45 AM
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Digging this thread up from the dead....

Looking at used Z06 w/F1s and I have no idea if they're original or not. Like the originator of this thread, I can't find a 4 digit date code anywhere! There's a 6 digit code below the "R" in Goodyear but I don't think that's it. Guess I'll be calling Goodyear customer service.
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Old 12-19-2017, 10:52 AM
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You need to look at both sides of the tire. On my motorhome, most face the inside so I need to crawl under to see them.
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Old 12-20-2017, 12:46 PM
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Originally Posted by kmetros View Post
They aren't always on the outside. I haven't figured that part out yet, but even directional tires don't always seem to have them on the same side.

I'm not a fan of tires more than 5 years old, especially on a Corvette. Don't just go by looks - just because there are no cracks in the rubber doesn't mean that the compound is the same as it was when it left the factory. It is definitively harder and has less traction. Period. You may not notice it in a straight line, but if they break loose easily or if the car doesn't seem as stable around turns I'd consider looking at swapping them out.

It's not so much just driving around on 5 year old tires that should concern you it's potentially NOT having control during evasive maneuvering / stopping that is the reason you should always consider updating 'older' rubber.

Kurt
Great advice!
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