Tire age - The 1947 - Present Chevrolet & GMC Truck Message Board Network

KellerMAC · 05-13-2013, 09:16 AM

Here's one for you - in 1998 I put new rubber on my 72 C10 and shortly thereafter (less than 100 miles), I pulled the truck into the garage and started my rebuild. I left the stock wheels and new tires on the frame during the rebuild and then I swapped out the steelies for rally wheels. The tires look brand new and have no tread wear - however, when I went to have them mounted on the rally wheels at Discount Tire (where I bought them in 1998), the guy looked at the date on the tires and refused to mount them on the rally wheels. I ended up taking them to a local tire shop and they mounted them without issue. Here is my question, should I be concerned with these tires coming apart and go buy new rubber, or should they be fine until I wear them down a bit. I hate to replace them if there is no worries and I want to replace them if there is a concern of them coming apart on me at 60 mph on the highway.

It's always something, right?

Thanks,

KellerMac

**truckster** · 05-13-2013, 09:22 AM

I bought a motorhome last year. It supposedly had 6 new tires on it. I took a trip across country, and after the first blowout I found the inner duals hadn't been replaced. The tread looked new, but the tires were manufactured in 1998. The second one blew out before I made it to a tire shop. I replaced both and the spare, which was also manufactured in 1998. The tires were Michelin, so they weren't junk tires.

After that experience, I get really nervous riding on old tires.

Rufton · 05-13-2013, 11:16 AM

Quote:

Originally Posted by truckster

I bought a motorhome last year. It supposedly had 6 new tires on it. I took a trip across country, and after the first blowout I found the inner duals hadn't been replaced. The tread looked new, but the tires were manufactured in 1998. The second one blew out before I made it to a tire shop. I replaced both and the spare, which was also manufactured in 1998. The tires were Michelin, so they weren't junk tires.

After that experience, I get really nervous riding on old tires.

Did you have a chance to look closely at old tires for signs of dry rot?

MARKDTN · 05-13-2013, 11:28 AM

I know it is a hard thing, but don't use them. Tires come apart from the inside out. Anything older than 10 years is asking for trouble. It isn't worth the risk. Michelin has done studies and says 7 years is a lifetime.

chevy72blu · 05-13-2013, 11:43 AM

In a similar situation with mine. My tires have approx 20k miles on them, then the truck sat for several years (in a garage, on jack stands, with UV protectant). Date of manufacture is 2003 so I know they should be replaced, but its tough when they literally look new. My mechanic said not to worry about them if they havent been exposed to much sun...

Rufton · 05-13-2013, 12:09 PM

Quote:

Originally Posted by MARKDTN

I know it is a hard thing, but don't use them. Tires come apart from the inside out. Anything older than 10 years is asking for trouble. It isn't worth the risk. Michelin has done studies and says 7 years is a lifetime.

I would think the life expectancy of a garaged nitrogen filled tire is different than a desert sun tire?

Sorry for those who buy tires that have sat on shelf for a few years and didn't check born on date.

MARKDTN · 05-13-2013, 12:57 PM

Quote:

Originally Posted by Rufton

I would think the life expectancy of a garaged nitrogen filled tire is different than a desert sun tire?

Sorry for those who buy tires that have sat on shelf for a few years and didn't check born on date.

Yes, of course. But you don't know when it will come apart. Don't get me wrong, I have a garaged car with this very issue. I hate to spend that kind of money when the tread is deep, but I also don't want to spend a bunch of money to fix the fenders or quarters if the tread separated. I hope to change them this year. Until then, not going fast or far.

**truckster** · 05-13-2013, 12:03 PM

Quote:

Originally Posted by Rufton

Did you have a chance to look closely at old tires for signs of dry rot?

There weren't really any signs of dry rot or cracking. Except for looking dirty, the spare I pulled off could have been installed the day before.

Evaded · 05-13-2013, 09:26 AM

Buy new tires dont take the chance. I bought a 70 Chevelle last year, original owner only drove it on sundays. The tires looked brand new, not dry or cracked.. had 3 blow outs before I realized the tires were old.

domeier · 05-13-2013, 12:06 PM

Quote:

Originally Posted by KellerMAC

...Here is my question, should I be concerned with these tires coming apart and go buy new rubber, or should they be fine until I wear them down a bit...

If they're not cracked, then what's the problem? As for "coming apart from inside out," I'd say that's a load of tire salesman bs.

BurnoutNova · 05-13-2013, 05:29 PM

Quote:

Originally Posted by domeier

If they're not cracked, then what's the problem? As for "coming apart from inside out," I'd say that's a load of tire salesman bs.

The way a tire deteriorates is from the inside out. Regular air can rot the inside of the tire.

I had a 33" tire that looked brand new, but was about 8 years old peel the tread and destroy the box on my 71 K10. Old tires scare the crap out of me now.

71swb4x4 · 05-13-2013, 06:29 PM

Quote:

Originally Posted by BurnoutNova

The way a tire deteriorates is from the inside out. Regular air can rot the inside of the tire.

I am not saying you are wrong, but I am curious as to why you are saying regular air rots the inside faster than the outside. There is regular air on the outside too right?

To the OP I would caution you to sift through the advice and try to find some info from educated sources.
Logically I think we can agree that there is a difference between a tire stored inside and one stored outside. I think we can also agree that tires are very important, and if we could choose between causing an accident, and spending money on new tires, we would spend the money. Of course the question which you are asking is when is it necessary to spend that money to avoid that accident. That is where you need educated sources.

BurnoutNova · 05-14-2013, 12:08 AM

Quote:

Originally Posted by 71swb4x4

I am not saying you are wrong, but I am curious as to why you are saying regular air rots the inside faster than the outside. There is regular air on the outside too right?

To the OP I would caution you to sift through the advice and try to find some info from educated sources.
Logically I think we can agree that there is a difference between a tire stored inside and one stored outside. I think we can also agree that tires are very important, and if we could choose between causing an accident, and spending money on new tires, we would spend the money. Of course the question which you are asking is when is it necessary to spend that money to avoid that accident. That is where you need educated sources.

I don't have a scientific answer, but I think it comes down to the air inside your tires is constantly heating up and cooling down and then traps moisture in there. I guess maybe it's like a musty moldy basement in there?

All I know is a 8 year old tire ruined a perfect rust free box of mine... So that made me a believer that I shouldn't run 8 year old tires.

MikeyMan · 05-15-2013, 01:11 PM

Quote:

Originally Posted by BurnoutNova

The way a tire deteriorates is from the inside out. Regular air can rot the inside of the tire.

Uh-oh!

The shops will be selling me air replacement service

Rufton · 05-13-2013, 12:30 PM

Tire issues I've witnessed:

Co-op tire tread blew off. Upon inspecting other three co-op brand tires, cracking was visible on sidewalls. Don't know tire age but they did see sun.

Old cheapo tire blew out on rear of V8 car. Don't know date but tire looked old and ugly, old fashioned tread design.

Tire was roughly 17 years old. Pirelli. Car sat during winters on tires. Had to drive a while to work flat spots out each year. Last year one tire started pulling. I removed tire from rim and saw no problem. I suspect belt damage from driving on cold flat spots.

*Mister-B* · 05-13-2013, 02:51 PM

What does the date stamp look like, and where is it located?
Posted via Mobile Device

**too much stuff** · 05-13-2013, 03:19 PM

I have never worried about the dates on tires. Common sense should be used when visually looking at them.
To the OP, i would run the tires if they look OK.

Rufton · 05-13-2013, 03:37 PM

Quote:

Originally Posted by Mister-B

What does the date stamp look like, and where is it located?
Posted via Mobile Device

http://www.tirerack.com/tires/tirete...jsp?techid=11&

bruceman1968 · 05-13-2013, 03:43 PM

Quote:

Originally Posted by Mister-B

What does the date stamp look like, and where is it located?
Posted via Mobile Device

On the sidewall
Name: Tire-Code.jpg
Views: 455
Size: 51.2 KB

Rufton · 05-13-2013, 06:49 PM

I would love to see more tire deterioration data on garaged cars.

**'68OrangeSunshine** · 05-13-2013, 07:01 PM

I bought new tires for my '68 Stepside in 2002, then discovered that after only 25 years and 250,000 miles the old 292 L6 was not getting fuel/air to cylinders 3 + 4, so I put it up on stands and started a rebuild. The project took me 3 years to complete, during which time, I rubbed vegetable oil into the rubber, kept the truck under a carport, with a car-cover on, and special [RV type] canvas tire covers-- when not working on it. After the truck was back on the road with a newly rebuilt 292, it ran fine with not much treadwear, until I had a blowout Thanksgiving weekend 2010. When they saw the date code at Discount Tire, they said that was why the tire failed.

PanelDeland · 05-13-2013, 07:25 PM

http://www.safercar.gov/Vehicle+Shop...ing/Tire+Aging
Info on tire aging

http://www.nhtsa.gov/Research/Vehicl...g+(VRTC)/Tires
Tire aging for the techie

http://www.edmunds.com/car-care/how-...our-tires.html

More tire aging info

Rufton · 05-13-2013, 07:39 PM

"NHTSA estimates that about 400 fatalities annually may have been attributed to tire failures"

NHTSA "estimates 34,080 people died in motor vehicle traffic crashes in 2012."

domeier · 05-13-2013, 08:25 PM

I guess it comes down to this: If you want to spend money to replace new tires with new tires... It's a free country.

terry b · 05-13-2013, 09:07 PM

If it were me i would scrap them and buy a new set. Run a hole saw thru the sidewall so somebody else does not find them and run them. I would hate to hear you blew a tire crossed the center line and killed someone because you were saving a buck. Hell it could be me.

05-13-2013, 09:16 AM	#1
KellerMAC Registered User Join Date: Jan 2007 Location: Keller, TX Posts: 143	Tire age Here's one for you - in 1998 I put new rubber on my 72 C10 and shortly thereafter (less than 100 miles), I pulled the truck into the garage and started my rebuild. I left the stock wheels and new tires on the frame during the rebuild and then I swapped out the steelies for rally wheels. The tires look brand new and have no tread wear - however, when I went to have them mounted on the rally wheels at Discount Tire (where I bought them in 1998), the guy looked at the date on the tires and refused to mount them on the rally wheels. I ended up taking them to a local tire shop and they mounted them without issue. Here is my question, should I be concerned with these tires coming apart and go buy new rubber, or should they be fine until I wear them down a bit. I hate to replace them if there is no worries and I want to replace them if there is a concern of them coming apart on me at 60 mph on the highway. It's always something, right? Thanks, KellerMac __________________ Texas - Don't Let The Size Scare You!

05-13-2013, 09:22 AM	#2
truckster Senior Member Join Date: Jan 2001 Location: Orem, Utah Posts: 7,976	Re: Tire age I bought a motorhome last year. It supposedly had 6 new tires on it. I took a trip across country, and after the first blowout I found the inner duals hadn't been replaced. The tread looked new, but the tires were manufactured in 1998. The second one blew out before I made it to a tire shop. I replaced both and the spare, which was also manufactured in 1998. The tires were Michelin, so they weren't junk tires. After that experience, I get really nervous riding on old tires.

05-13-2013, 11:28 AM	#4
MARKDTN Registered User Join Date: Jan 2011 Location: Chattanooga, TN Posts: 2,165	Re: Tire age I know it is a hard thing, but don't use them. Tires come apart from the inside out. Anything older than 10 years is asking for trouble. It isn't worth the risk. Michelin has done studies and says 7 years is a lifetime. __________________ '83 K20-TPI '73 C10 '79 C10-ex-diesel(SOLD) '07 Tahoe(Son driving) '14 Suburban-DD '71 C10-current project

05-13-2013, 11:43 AM	#5
chevy72blu Registered User Join Date: Apr 2004 Location: Las Vegas, NV Posts: 2,188	Re: Tire age In a similar situation with mine. My tires have approx 20k miles on them, then the truck sat for several years (in a garage, on jack stands, with UV protectant). Date of manufacture is 2003 so I know they should be replaced, but its tough when they literally look new. My mechanic said not to worry about them if they havent been exposed to much sun... __________________ RIP EastSideLowLife '72 C20 SWB convert. 5 lug, LS1/4l60e

05-13-2013, 09:26 AM	#9
Evaded Registered User Join Date: Apr 2013 Location: San Antonio TX Posts: 424	Re: Tire age Buy new tires dont take the chance. I bought a 70 Chevelle last year, original owner only drove it on sundays. The tires looked brand new, not dry or cracked.. had 3 blow outs before I realized the tires were old. __________________ If I see a Zombie.. Im runnin it over with my Truck.

05-13-2013, 12:30 PM	#15
Rufton Registered User Join Date: Apr 2013 Location: Knoxville TN Posts: 1,170	Re: Tire age Tire issues I've witnessed: Co-op tire tread blew off. Upon inspecting other three co-op brand tires, cracking was visible on sidewalls. Don't know tire age but they did see sun. Old cheapo tire blew out on rear of V8 car. Don't know date but tire looked old and ugly, old fashioned tread design. Tire was roughly 17 years old. Pirelli. Car sat during winters on tires. Had to drive a while to work flat spots out each year. Last year one tire started pulling. I removed tire from rim and saw no problem. I suspect belt damage from driving on cold flat spots.

05-13-2013, 02:51 PM	#16
Mister-B Account Suspended Join Date: Oct 2012 Location: Salt Lake City, Utah Posts: 3,331	Re: Tire age What does the date stamp look like, and where is it located? Posted via Mobile Device

05-13-2013, 03:19 PM	#17
too much stuff Roadtrip! Join Date: Feb 2003 Location: Grand Rapids MN Posts: 13,787	Re: Tire age I have never worried about the dates on tires. Common sense should be used when visually looking at them. To the OP, i would run the tires if they look OK. __________________ 67 gmc custom lwb dakota truck. Sold...And bought back 69 swb 4x4 project (in progress) 70 c-10 lwb texas truck 70 4x4/BB/bkts/posi/tach(retired) 70 swb (wifes) 70 jimmy camper 71 K-5 factory 2wd 71 cheyenne 4x4/tach/posi/ plow rig 71 Cheyenne20 BB, buckets, tach, tilt, 4 speed 72 jimmy CST wyoming rig 72 jimmy Colorado rig 72 lifted texas 4x4 3/4 ton burb 65 fury conv. 383/auto 65 chrysler 300 "L" 413 auto

05-13-2013, 06:49 PM	#20
Rufton Registered User Join Date: Apr 2013 Location: Knoxville TN Posts: 1,170	Re: Tire age I would love to see more tire deterioration data on garaged cars.

05-13-2013, 07:01 PM	#21
'68OrangeSunshine Senior Member Join Date: Feb 2002 Location: Tucson, AZ USA Posts: 7,504	Re: Tire age I bought new tires for my '68 Stepside in 2002, then discovered that after only 25 years and 250,000 miles the old 292 L6 was not getting fuel/air to cylinders 3 + 4, so I put it up on stands and started a rebuild. The project took me 3 years to complete, during which time, I rubbed vegetable oil into the rubber, kept the truck under a carport, with a car-cover on, and special [RV type] canvas tire covers-- when not working on it. After the truck was back on the road with a newly rebuilt 292, it ran fine with not much treadwear, until I had a blowout Thanksgiving weekend 2010. When they saw the date code at Discount Tire, they said that was why the tire failed. __________________ Every 25 years I like to rebuild that 292, whether it needs it or not.

05-13-2013, 07:25 PM	#22
PanelDeland I am a Referee of life. Join Date: Jun 2000 Location: Greensboro N.C. Posts: 13,992	Re: Tire age http://www.safercar.gov/Vehicle+Shop...ing/Tire+Aging Info on tire aging http://www.nhtsa.gov/Research/Vehicl...g+(VRTC)/Tires Tire aging for the techie http://www.edmunds.com/car-care/how-...our-tires.html More tire aging info __________________ The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil"

05-13-2013, 07:39 PM	#23
Rufton Registered User Join Date: Apr 2013 Location: Knoxville TN Posts: 1,170	Re: Tire age "NHTSA estimates that about 400 fatalities annually may have been attributed to tire failures" NHTSA "estimates 34,080 people died in motor vehicle traffic crashes in 2012."

05-13-2013, 08:25 PM	#24
domeier Registered User Join Date: Sep 2011 Location: San Jose, California Posts: 784	Re: Tire age I guess it comes down to this: If you want to spend money to replace new tires with new tires... It's a free country.

05-13-2013, 09:07 PM	#25
terry b Registered User Join Date: Oct 2011 Location: jackson michigan Posts: 755	Re: Tire age If it were me i would scrap them and buy a new set. Run a hole saw thru the sidewall so somebody else does not find them and run them. I would hate to hear you blew a tire crossed the center line and killed someone because you were saving a buck. Hell it could be me.



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