Recent Topics
Memorial Day
by Rick in PA
05/29/17 08:22 AM
You can't judge a book by its cover.
by Rick in PA
05/29/17 08:15 AM
Accept paypal as payment for motorcycle?
by grampi
05/29/17 07:10 AM
Favorites
by willbur
05/29/17 07:04 AM
Mixing Oils this way...would you do it ?
by Shannow
05/29/17 07:01 AM
AutoZone Oil Change Bundle $5
by Sayjac
05/29/17 06:49 AM
Advice needed for torque converter fluid
by rodekyll
05/28/17 11:04 PM
Ford WSS-M2C171-F1 spec
by 15SilvyEcotec
05/28/17 10:39 PM
Her dart needs a trans fluid change
by ram_man
05/28/17 10:26 PM
Pennzoil Gold's New Bottle....
by daves87rs
05/28/17 10:05 PM
1999 Camry CE Bosch filter 3600 miles
by Brolly
05/28/17 09:38 PM
MG101-7 Cut Open 5,282 miles
by Brolly
05/28/17 09:23 PM
prestone all makes all models ,and valvaline asian
by rem shooter
05/28/17 09:06 PM
2010 hyunia accent radiator
by rem shooter
05/28/17 08:55 PM
My $300 Score!
by tomcruise
05/28/17 08:53 PM
07' CTS 3.6L Engine Oil 148K Miles
by TX_1821
05/28/17 08:33 PM
What do the T ratings mean?
by SilverFusion2010
05/28/17 08:07 PM
Thought this was funny
by exranger06
05/28/17 07:34 PM
How many use a slide hammer?
by volk06
05/28/17 07:29 PM
Expensive Dealer Oil Change
by Whimsey
05/28/17 07:18 PM
Newest Members
nolimit06, Eedd, mising, Newbie_ttk11, nitrousnut
61690 Registered Users
Who's Online
79 registered (Ausfahrt, Alex_V, Bamaro, 2002 Maxima SE, adamrc, Astro14, 9 invisible), 1898 Guests and 11 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
61690 Members
66 Forums
265768 Topics
4392008 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Topic Options
#3399649 - 06/17/14 09:50 AM Date codes on tires
old1 Offline


Registered: 01/04/11
Posts: 777
Loc: Columbus Nebraska
Just out of curiosity, what year did they start putting date codes on tires? On my old (1980) pickup, which I just buy used tires for, and my 65 mustang, which just gets used for cruise nights and shows, I can't find any numbers that could possibly be date codes. I find it on my new (2014) car, but not on any of the old ones, so just wondering how old the tires probably are?


Edited by old1 (06/17/14 09:52 AM)
_________________________
2014 Fusion 2.5 engine 5/20 QSUD Napa gold
1965 Mustang 200 c/4 10w30 QS defy Fram TG
1964 Ford Ranchero 302 c/4 15/40 Delo Napa gold

Top
#3399651 - 06/17/14 09:53 AM Re: Date codes on tires [Re: old1]
Quattro Pete Offline


Registered: 10/30/02
Posts: 33676
Loc: Great Lakes
It's a bit more tricky with tires manufactured prior to 2000. This TireRack article has some info on this...

http://www.tirerack.com/tires/tiretech/techpage.jsp?techid=11
_________________________
'02 530i (Edge HM 10W-40)
'15 Q5 3.0T (Edge 5W-40)

Top
#3399653 - 06/17/14 09:58 AM Re: Date codes on tires [Re: old1]
old1 Offline


Registered: 01/04/11
Posts: 777
Loc: Columbus Nebraska
Thanks
_________________________
2014 Fusion 2.5 engine 5/20 QSUD Napa gold
1965 Mustang 200 c/4 10w30 QS defy Fram TG
1964 Ford Ranchero 302 c/4 15/40 Delo Napa gold

Top
#3399668 - 06/17/14 10:27 AM Re: Date codes on tires [Re: old1]
Hokiefyd Offline


Registered: 06/24/04
Posts: 14505
Loc: Top of Virginia
old1, it's also possible, if the date codes appear to be missing, that they're on the sidewall that's facing in towards the vehicle. Tire manufacturers are required to put the full DOT code (including the date produced) on at least one of the sidewalls, and the full code should be on the sidewall intended to face out. So they'll be on the sidewall with a white wall or white letters, or on the sidewall that's labeled "OUTSIDE" for an asymmetrical tire. But for a symmetrical blackwall tire, with two sidewalls that are the same, the date code may be facing in.

Top
#3399718 - 06/17/14 11:44 AM Re: Date codes on tires [Re: old1]
eljefino Online   content


Registered: 06/15/03
Posts: 30855
Loc: ME


27th week of 1995. The little triangle means it's from the 1990s. IIRC lacking a triangle makes it the 80s, and 4 digits = 2000+.

From my collection.

If they're trying for looks on your mustang they probably put all the boring stuff on the inside, on purpose.

Top
#3399759 - 06/17/14 12:34 PM Re: Date codes on tires [Re: old1]
CapriRacer Offline


Registered: 02/22/03
Posts: 3138
Loc: Somewhere in the US
And to answer the original question.

The law goes back to the late 1960's. I'm sure there was a transition period, but I can't tell you when the drop dead date was - but by the time I started working in the tire industry (1971), it was fully implemented everywhere.

And, yes, if you don't find the DOT code or only a partial, look on the other side of the tire. Prior to 2008, when it was mandated that a full code had to be on the side intended out and the other had to have a partial, it was only required on one side and usually that was the side intended in.
_________________________
CapriRacer

Visit my web site: www.BarrysTireTech.com

Top
#3399792 - 06/17/14 01:13 PM Re: Date codes on tires [Re: old1]
old1 Offline


Registered: 01/04/11
Posts: 777
Loc: Columbus Nebraska
That is probably why I couldn't find it, I am sure they are prior to 2008, and they are whitewalls, so must be on the inside. Next time I have the car up for service, I will see what it says on the inside. Not that it really matters to me of course, as long as they go around I will run them. I was just curious. Thanks
_________________________
2014 Fusion 2.5 engine 5/20 QSUD Napa gold
1965 Mustang 200 c/4 10w30 QS defy Fram TG
1964 Ford Ranchero 302 c/4 15/40 Delo Napa gold

Top
#3403462 - 06/21/14 11:51 PM Re: Date codes on tires [Re: old1]
sxg6 Offline


Registered: 05/23/04
Posts: 2441
Loc: ME
I actually ran into this problem myself, I had trouble locating the date codes on two sets of tires for my fathers 4runner. On a set of yokohama's from 2009, and a set of bridgestones from 2011, the date codes were molded into the interior sidewall of the tires.

Top