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At what age (sidewall date code) do you think tires should be replaced?
Posted by: rnch ()
Date: October 08, 2018 12:39PM

5..7...10 years old?

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Re: At what age (sidewall date code) do you think tires should be replaced?
Posted by: MattNall ()
Date: October 08, 2018 12:50PM

Industry standard is 6 years,,,


I'll run anything that looks good and can take 60 psi..





MODERATOR
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Re: At what age (sidewall date code) do you think tires should be replaced?
Posted by: Caraholic4life ()
Date: October 08, 2018 12:50PM

Here is a cut and paste from a Car and Driver article:
[www.caranddriver.com]

"It may be tentative, but tires do have an expiration date. There is a general consensus that most tires should be inspected, if not replaced, at about six years and should be absolutely be swapped out after 10 years, regardless of how much tread they have left."

On a Motorhome or a vehicle that is typically driven aggressively, I would say that the SIX year limit should be adhered to relatively strictly.
On a collector car that is typically driven at low speeds, rarely on the highway, and typically garaged where the sun and UV are not as much of an issue, I would tend to lean toward the ten year limit.

Every situation will be different but it is up to you to determine the risk versus the financial cost as when to replace your tires that age out before they wear down. JMO

FWIW, I have a set of Yokohama's on my 1965 Monza coupe that were sitting around brand new for several years before they were mounted on wheels. They got mounted on wheels back in 2010 and the car has only been pushed from spot to spot into and out of the garage and around the driveway from time to time. These tires don't even have one mile on them but I wouldn't trust them to do anything more than test drive the car on my dead end street at speeds under 30 MPH at this point. Three of them look perfect but one kept losing air and going flat. That tire has all kinds of dry rot cracks on the sidewall.
My plan is to buy brand new tires for the car once I get it back together and ready to insure and tag for use. I won't risk using these particular tires.

1962 95 F.C. Van
1965 Monza Coupe
Westminster, Maryland

MID ENG enthusiast &
prior Kelmark owner.



Edited 1 time(s). Last edit at 10/08/2018 12:58PM by Caraholic4life.

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Re: At what age (sidewall date code) do you think tires should be replaced?
Posted by: corvairsince70 ()
Date: October 08, 2018 01:22PM

Caraholic,
You don't insure your cars whether you drive them or not? If it has value to you it needs insurance. Homeowners insurance will not pay for an uninsured car in the garage if something happens to it, you lose.

Dennis
Nashville area
'68 Conv 140 PG
'66 Corsa Conv 180
'66 Corsa 140

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Re: At what age (sidewall date code) do you think tires should be replaced?
Posted by: rnch ()
Date: October 08, 2018 01:31PM

The last 4 numbers on the sidewall date code is "0311".

I assume this is indicating the tires were created in the third week of 2011?

These tires have (guessing) 98% of the thread left; noticing some fine cracking on the sidewalls close to the rim lip.

The first fall cool front for New Orleans is scheduled for this weekend; will finally be starting the 7 months of good "Top Down" weather here.



Edited 1 time(s). Last edit at 10/08/2018 01:36PM by rnch.

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Re: At what age (sidewall date code) do you think tires should be replaced?
Posted by: American Mel ()
Date: October 08, 2018 01:38PM

corvairsince70 Wrote:
-------------------------------------------------------
> Caraholic,
> You don't insure your cars whether you drive them
> or not? If it has value to you it needs
> insurance. Homeowners insurance will not pay for
> an uninsured car in the garage if something
> happens to it, you lose.


Well, some insurance companies wont issue an initial insurance policy, unless tagged and running.
After that, you can get "sitting insurance".

.
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
WA. state, 1 mile south of the Canadian border,
I am not at the end of the world, but you can see it from here.
'66 Monza Coupe - 4spd, 140 Daily driver beater
'67 Monza Vert. - PG, 140 Daily driver beater
'67 A/C Moredoor Monza - 140 4-spd. driver

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Re: At what age (sidewall date code) do you think tires should be replaced?
Posted by: Paulsgt ()
Date: October 08, 2018 01:57PM

So I shouldn't drive my 61 Tempest on its nearly new tires that were purchased in from Wards 1969? grinning smiley

Enjoy the Corvair!

Paul Sergeant
CORSA Central Division Director / CORSA Treasurer <-new title
Lee's Summit, MO
CORSA since 1975
Member – HACOA, Corvair Minnesota, CORSA, Little Indians, POCI



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Re: At what age (sidewall date code) do you think tires should be replaced?
Posted by: moomba32 ()
Date: October 08, 2018 02:00PM

One of our VPs is a former Michelin executive and very highly educated and a car guy. I asked him about this. He said ozone is the biggest threat, bagging tires helps this, second is uv stored inside or covered helps this. He told me to inspect the tires carefully around the bead and the tread for cracks. Cracks let in water and water rusts the steel causing failure. He says no cracks go ahead and run them.

Don Marlowe
66 Monza 2Dr 140/pg
64 Spyder convertible now, 110/pg
Eutawville SC

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Re: At what age (sidewall date code) do you think tires should be replaced?
Posted by: rnch ()
Date: October 08, 2018 02:08PM

moomba32 Wrote:
-------------------------------------------------------
> ...He told me to
> inspect the tires carefully around the bead and
> the tread for cracks. Cracks let in water and
> water rusts the steel causing failure. He says no
> cracks go ahead and run them.


All four tires are showing sidewall cracks close to the rims.


Hmmmmmm..........

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Re: At what age (sidewall date code) do you think tires should be replaced?
Posted by: Caraholic4life ()
Date: October 08, 2018 02:09PM

Currently the Corvair's are untagged and uninsured. I bought both as projects and as stated, I don't think my insurance company will insure incomplete untagged vehicles.
They already think that having four tagged insured vehicles with only one person in the house is odd. Apparently they don't comprehend cars as a hobby.

In the event something happens to the Corvairs, I'll argue that since they didn't run, were not tagged, they were "Yard Art" and see where that conversation goes after they stop laughing at me.

IF I thought I could get insurance on the Non running, untagged vehicles, I would absolutely do just that. Until then, I just have to hope nobody thinks they are worth stealing.

1962 95 F.C. Van
1965 Monza Coupe
Westminster, Maryland

MID ENG enthusiast &
prior Kelmark owner.

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Re: At what age (sidewall date code) do you think tires should be replaced?
Posted by: isucorvair ()
Date: October 08, 2018 03:23PM

I was formerly a Quality Engineer at Firestone, though on the Ag tire side.

I will not run tires more than 10 years old, no matter how they look.

I did, once, and had a perfect appearing tire fail, on the interstate, on a Greenbrier. Based on what I cod tell, the polyester plies failed.


Eric P
DeWitt, IA

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Re: At what age (sidewall date code) do you think tires should be replaced?
Posted by: Wagon Master ()
Date: October 08, 2018 04:33PM

Caraholic4life Wrote:
-------------------------------------------------------
> I don't think my insurance company will
> insure incomplete untagged vehicles.
> They already think that having four tagged insured
> vehicles with only one person in the house is odd.
> Apparently they don't comprehend cars as a hobby.


Time to find a new insurance company.eye rolling smiley

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Re: At what age (sidewall date code) do you think tires should be replaced?
Posted by: Lane66m ()
Date: October 08, 2018 05:39PM

Don't trust tires, if they are 19 years old.

Al Lane
Ellabell GA

1966 Monza Coupe, 110 hp, 4 Spd
1968 Camaro SS Coupe 350 CI 295+ HP PG
1964 Greenbrier Deluxe, 6 dr, 80 hp car engine, PG
2015 Chevrolet Malibu 2LT
2018 Chevrolet Silverado LTZ Z71 Centennial Edition
1947 Farmall A tractor 15 hp


Attachments:

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Re: At what age (sidewall date code) do you think tires should be replaced?
Posted by: rnch ()
Date: October 08, 2018 05:48PM

Lane66m Wrote:
-------------------------------------------------------
> Don't trust tires, if they are 19 years old.



Especially on long road trips in warm weather.

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Re: At what age (sidewall date code) do you think tires should be replaced?
Posted by: moomba32 ()
Date: October 08, 2018 05:53PM

rnch Wrote:
-------------------------------------------------------
> moomba32 Wrote:
> --------------------------------------------------
> -----
> > ...He told me to
> > inspect the tires carefully around the bead and
> > the tread for cracks. Cracks let in water and
> > water rusts the steel causing failure. He says
> no
> > cracks go ahead and run them.
>
>
> All four tires are showing sidewall cracks close
> to the rims.
>
>
> Hmmmmmm..........

I'd be super vigilant, like as soon as you feel a little vibration hit the brakes.

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Re: At what age (sidewall date code) do you think tires should be replaced?
Posted by: moomba32 ()
Date: October 08, 2018 05:59PM

Caraholic4life Wrote:
-------------------------------------------------------
> Currently the Corvair's are untagged and
> uninsured. I bought both as projects and as
> stated, I don't think my insurance company will
> insure incomplete untagged vehicles.
> They already think that having four tagged insured
> vehicles with only one person in the house is odd.
> Apparently they don't comprehend cars as a hobby.
>
> In the event something happens to the Corvairs,
> I'll argue that since they didn't run, were not
> tagged, they were "Yard Art" and see where that
> conversation goes after they stop laughing at me.
>
> IF I thought I could get insurance on the Non
> running, untagged vehicles, I would absolutely do
> just that. Until then, I just have to hope nobody
> thinks they are worth stealing.

I currently have 3 insured through JC Tayler, they have never asked me about having them registered, one I did add as I was in line at DOT to get tags. The tags and insurance on all 3 sets me back about $300 a year, I just pulled the 2016 tag off the Blazer to install the 2019 tag so I know you can have them insure here in SC without them running.

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Re: At what age (sidewall date code) do you think tires should be replaced?
Posted by: red monza ()
Date: October 08, 2018 07:05PM

I believe here in NC, but not sure, that tire folks will not plug, balance or mount a tire thats over 7 years old....might be an NC insurance thing...not sure....all building codes are not gov born....Insurance companies in NC set the codes and the gov makes them law.

There are rules and regulations....and they are for our own good when we don't have sense enough to realize the problem that could be....say like a limo that does not meet inspection nor the driver of the limo have the proper license to operate it.

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Re: At what age (sidewall date code) do you think tires should be replaced?
Posted by: dolomitefan ()
Date: October 09, 2018 02:17AM

When I got my GB I reckon the tyres were at least 25 years old looking at the date code, I replaced them and feel happier for doing so.

---------------------------------------------------------------
Mark Gibson, Staffordshire, England

1961 Corvair Greenbrier
1980 Triumph Dolomite Sprint
2009 Mazda MX5
2018 Infiniti Q30

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Re: At what age (sidewall date code) do you think tires should be replaced?
Posted by: j3m ()
Date: October 09, 2018 01:01PM

Eric P. summed it up best. (Ten Years Maximum in a best case situation but my belief is that 7 to 8 years WOULD BE MAXIMUM ON ANY VEHICLE THAT TRAVELS ON INTERSTATE HIGHWAYS At posted speed limits or higher!

You're just asking for it, if you routinely travel on just 7 year old tires at Interstate "traffic speeds" of 75mph to 95 mph in the hot as hell, DEEP SOUTH during the months between April 1st and Nov 30th, as the pavement temperature is beyond very warm and between May 15th and Oct 15th is scorching hot and it is beyond el fuego during June, July and August.

Current freeway/Interstate "traffic speeds" generally exceed the posted limit by five to twenty-five miles per hour.
At 55 mph a blown-out tire might not be catastrophic, but at 75, 85 or any point in between or greater and your next drive may be in the back of a hearse.
I'm just saying don't be the dumbass that didn't think that it was necessary to replace the existing tires. You are worth it! Laugh all that you want at the Michelin ad line of "BECAUSE SO MUCH IS RIDING ON YOUR TIRES", but probably nothing is more true than that statement. Think about it, don't be a dumbass or if you must be a dumbass cheapskate riding old rubber, then limit that vehicle to road speeds of no greater than 55mph!



OLD TIRES ARE OKAY FOR FARM USE, and probably marginally acceptable for street use where the vehicle will not exceed 35mph-40mph but anything more and you're just being a fool!


I think it would be wise for states and/or fed govt to Outlaw all tires over 12 years from the DOT code from being in use on any vehicle that sees Interstate Highway use. Failure to comply would equal a $2500 fine. Thus if your vehicle had just one tire on it that exceeded 12 years of age, you would receive a mandatory $2500 fine if your car was involved in an accident--OR--stopped by the highway patrol for speeding or any other violation. The $2500 fine would be per vehicle, so if one tire, or if all four tires, it(the fine) would be just $2500 minimum and maximum per vehicle!
I would impose a 7 year age limitation on all commercial trucks as well as any and all commercial passenger cars, commercial p/u trucks/suv's, limos, wreckers...anything owned and registered in a business entity name.
Fine for violating the 7 year age limitation for commercial vehicles would be $5000.
You just can't have vehicles travelling at the prevailing Interstate traffic speeds with old tires. It isn't always POS vehicles that are the abusers. It could be a 12 year old luxury SUV still on its original tires. The cat driving the 1973 Ford pickup has tires that are less than four years old because he knows that type of pickup truck will be a helluva ride if it were to blow-out a tire at 80mph!
Those are simply this idiot's opinions on the subject of aged tires!

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Re: At what age (sidewall date code) do you think tires should be replaced?
Posted by: joelsplace ()
Date: October 09, 2018 01:33PM

Fuel injection will get you a couple of more years out of a set of tires.
Move to Russia or China and let the government hold your hand.

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