Recent Topics
First Hand Experience with LSPI Destroying Engine?
by jcartwright99
6 minutes 41 seconds ago
Tire Rebate - Ebay $100 Off
by Greg L
56 minutes 46 seconds ago
Student Loan Scams
by MolaKule
Today at 10:15 AM
Conklin Products?
by 2012AccentSE
Today at 10:08 AM
RIP Gord Downie
by Lolvoguy
Today at 09:57 AM
2005-2006 4runner v6 towing capability
by mjk
Today at 09:52 AM
Dexos 1 or Dexos 2 for Chevy Sonic?
by WyrTwister
Today at 08:18 AM
Male breast cancer awareness week
by andyd
Today at 07:48 AM
FP Plus and catalytic converters
by d00df00d
Today at 07:46 AM
E85
by danielLD
Today at 07:10 AM
Whole house filter?
by Matagonka
Today at 06:44 AM
Need to deglaze cylinder on 2-stroke outboard?
by nwjones18
Today at 06:09 AM
Valvoline printable coupon
by a1mfw
Today at 04:18 AM
white lithium grease for gearboxes?
by motor_oil_madman
Yesterday at 10:20 PM
Synthetic Comparison - Castrol and Valvoline win
by FlyPenFly
Yesterday at 10:20 PM
adjustable grease coupler?
by motor_oil_madman
Yesterday at 10:18 PM
Mouseblocker Pro for mice in cars
by Donald
Yesterday at 10:04 PM
winter is coming. f150
by hyperscion
Yesterday at 08:17 PM
Mobil Super 5000 vs Chevron Supreme
by Merkava_4
Yesterday at 07:30 PM
Frankenblend ideas
by car51
Yesterday at 07:27 PM
Newest Members
Bieben, djslikrick, Route_66, Coltman, root
63154 Registered Users
Who's Online
85 registered (28oz, 94firehawk, 2010Civic, 2012AccentSE, 69GTX, 4WD, 8 invisible), 2127 Guests and 15 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
63154 Members
66 Forums
272425 Topics
4522188 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: 855
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
1965 Mustang 200 c/4 10w30 QS defy
1964 Ford Ranchero 302 c/4 15/40 Delo
1929 ford model A No filters, and 15/40 oil

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


Registered: 10/30/02
Posts: 34297
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: 855
Loc: Columbus Nebraska
Thanks
_________________________
2014 Fusion 2.5 engine 5/20 QSUD
1965 Mustang 200 c/4 10w30 QS defy
1964 Ford Ranchero 302 c/4 15/40 Delo
1929 ford model A No filters, and 15/40 oil

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 Offline


Registered: 06/15/03
Posts: 31506
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: 3234
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: 855
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
1965 Mustang 200 c/4 10w30 QS defy
1964 Ford Ranchero 302 c/4 15/40 Delo
1929 ford model A No filters, and 15/40 oil

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


Registered: 05/23/04
Posts: 2451
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