Author Topic: Can You Decode My Tire Year?  (Read 1333 times)

MS616

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Can You Decode My Tire Year?
« on: March 29, 2021, 11:16:04 »
Hello My Friends,

Can you assist me decode my Tire Year. This is what it reads, DOT HNA6 DTNX 173. Is it the 17th week of 2003 or April 26th of 1993?

Thanks,,

Cees Klumper

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Re: Can You Decode My Tire Year?
« Reply #1 on: March 29, 2021, 11:54:32 »
173 means it was produced before 2000. After 2000 it would have to be 4 digits, not 3. Not possible to say whether it's from 1993, 1983 or maybe even earlier (this according to the Tire Rack's website). Either way, it should be scrapped?
Cees Klumper
1969 Mercedes 280 SL automatic
1968 Ford Mustang 302 V8
1961 Alfa Romeo Giulietta Sprint Coupe 1600
1962 FIAT 1500S OSCA convertible
1972 Lancia Fulvia Coupe 1.3
1983 Porsche 944 2.5
1990 Ford Bronco II

mrfatboy

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Re: Can You Decode My Tire Year?
« Reply #2 on: March 29, 2021, 14:00:46 »
According to this snippet i found on the web it would  suggest pre 80’s.

“Sometimes you can easily determine which decade the tire belongs in based on the sizing nomenclature, brand or style. Let's say you're looking at an LR78-15 tire, using the same 306 date code we mentioned earlier. Based on the alpha-numeric sizing nomenclature, it would be our best guess that the tire was manufactured in 1976, as the now standard P metric sizing (ex. P215/75R15) became more popular in the 1980's. You could also expect this tire to be missing the standardized safety warnings on the sidewall and any type of tread wear indicators, as those features were mandated later than 1976. That's just one example but you can see how certain styles or sizes can be quickly identified by decade.“
1969 280sl (Aug 1968 build)
Signal Red
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MS616

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Re: Can You Decode My Tire Year?
« Reply #3 on: March 29, 2021, 15:00:03 »
173 means it was produced before 2000. After 2000 it would have to be 4 digits, not 3. Not possible to say whether it's from 1993, 1983 or maybe even earlier (this according to the Tire Rack's website). Either way, it should be scrapped?

Yes sir, already on order. I was curious to see how old these bad boys were.

MS616

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Re: Can You Decode My Tire Year?
« Reply #4 on: March 29, 2021, 15:00:31 »
According to this snippet i found on the web it would  suggest pre 80’s.

“Sometimes you can easily determine which decade the tire belongs in based on the sizing nomenclature, brand or style. Let's say you're looking at an LR78-15 tire, using the same 306 date code we mentioned earlier. Based on the alpha-numeric sizing nomenclature, it would be our best guess that the tire was manufactured in 1976, as the now standard P metric sizing (ex. P215/75R15) became more popular in the 1980's. You could also expect this tire to be missing the standardized safety warnings on the sidewall and any type of tread wear indicators, as those features were mandated later than 1976. That's just one example but you can see how certain styles or sizes can be quickly identified by decade.“

Wow, that would be something. 1980's tire, woow :P :P