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November 30th, 2011, 10:33 PM
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#1 |
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Members
Join Date: Aug 2004
Location: Bowmanville,Ont
Posts: 609
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Little Help with Tire Dot Code
I decided to check some of my tires for dates.
look for the DOT then find the last four numbers and that's your week and year they were made. also 4 digits is after 2000 and 3 digits are before. If it has a triangle beside it, it's the 90's if it doesn't it's the 80's. Here's my code on a set of Michelin's DOT 4M49 D79 X 378 Nothing else on the tire inside and out, besides size, brand, ratings and warnings. does that code make sense?
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 Mazda. 
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November 30th, 2011, 11:11 PM
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#2 |
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TOP Alumni
Join Date: Apr 2002
Location: Toronto
Posts: 8,218
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Both sides are the same?
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November 30th, 2011, 11:23 PM
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#3 |
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2010 Donating Member
Join Date: Mar 2005
Location: Georgetown, ON
Posts: 16,779
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Doesn't sound like the proper DOT, check both sides of the tire. I know some tires i've had in the past i've really had to really look for it.
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December 1st, 2011, 07:31 AM
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#4 |
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2010 Donating Member
Join Date: Jun 2007
Location: Vaughan (Farmside)
Posts: 7,135
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Wrong side of the tire... if there isn't 4 digits at the end.. check the other side.
 4202 = 42nd week of 2002... 42/52=0.80*12= End of September.
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December 1st, 2011, 08:55 AM
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#5 |
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Members
Join Date: Sep 2003
Location: London, ON
Posts: 148
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It's possible the tires are from before the year 2000 as you mentioned when they only used 3 digit codes, not 4.
http://www.tirerack.com/tires/tirete....jsp?techid=11 378 would mean 37th week of the 8th year of the decade (1997?) That would make those fairly old tires
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Jesse 2002 Mazda Protege 5, Yellow London, ON |
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April 4th, 2012, 08:17 PM
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#6 | |
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Join Date: Mar 2009
Location: Hamilton
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Quote:
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