Does tires have an expiration date?

StoneCold · 09-10-2008, 07:33 PM

Everyone,

Does any one know that tires have an expiration date? or expires date?

When a spare tires that are not using and seat in a garage. Thanks.

LEDZEP · 09-10-2008, 07:37 PM

Seriously?

No.

stickypaws · 09-10-2008, 07:53 PM

Quote:

Originally Posted by LEDZEP

Seriously?

No.

Actually they do. It's on the tire. Check the DOT website. It's important to use tires within a time period. All the info is on the web. Do a Google search.

To find a tire's age, check its long DOT code, found on the side of the tire. At the very end are three numbers which indicate the week and year the tire was made, for example a DOT number ending with 414 means the tire was made the 41st week of the year 1994.

smellthebeans · 09-10-2008, 08:00 PM

Absolutely!
watch this
http://video.google.com/videoplay?do...89789803&hl=en

As a rule I would not use any tires more than 5 years old. Often tire shops offer deals and sales on tires that are old.

There is no hard and fast rule on how to mark tires with a born on date. All manufacturers do date tires along with other information (lot, plant location, ect ect). It takes some sleuthing to figure out.

choiffer · 09-10-2008, 08:13 PM

YES THEY DO. DO not use old tires.

yuyue · 09-10-2008, 08:21 PM

the answer would be yes.
rubber do gets old

nicknaz · 09-10-2008, 08:21 PM

Yes there is an expiration date. i've heard it is ~5yr from date of manufacture.

Tires will dry out, crack etc. no worth it to take the chance. If you have an older car with spare >5yr old, I'd think about getting it replaced

undecided · 09-10-2008, 08:25 PM

Quote:

Originally Posted by Nick Nazareno

Yes there is an expiration date. i've heard it is ~5yr from date of manufacture.

Tires will dry out, crack etc. no worth it to take the chance. If you have an older car with spare >5yr old, I'd think about getting it replaced

that makes no sense. most tires these days have a significant synthetic component.

halB · 09-10-2008, 08:32 PM

http://www.carbibles.com/tyre_bible.html

yoiko · 09-10-2008, 08:34 PM

Quote:

Originally Posted by smellthebeans

Absolutely!
watch this
http://video.google.com/videoplay?do...89789803&hl=en

As a rule I would not use any tires more than 5 years old. Often tire shops offer deals and sales on tires that are old.

There is no hard and fast rule on how to mark tires with a born on date. All manufacturers do date tires along with other information (lot, plant location, ect ect). It takes some sleuthing to figure out.

Great information!! Thanks!!

dwarner4 · 09-10-2008, 09:23 PM

There is absolutely a date on tires. On the Bridgestone run flats its the DKN4805 type number. It's always coded in 4 numeric assignments. 4805 refers to 48th week of 2005. So a new tire would be 3508. 35th week of 2008 or some time in August of '08 manufacture date. If you have a tire that says 5199. Its 51st week of 1999. or too old even if the tread is brand new. Consumer Reports and most manufacturers recommend that a tire past 6 years is too old even if it's "brand New". Retailers will try to sell you the old tires first to get them off inventory.I saw a video where a guy went in and bought a new closeout tire that was 13 years old and looked perfect. The rubber dry rots and the tread separates from the sidewall at high speeds. Make sure you get fresh rubber. It could be life or death...

halB · 09-10-2008, 10:02 PM

Quote:

Originally Posted by dwarner4

......If you have a tire that says 5199. Its 51st week of 1999. or too old even if the tread is brand new. ...

According to Type Bible, only tires that are manufacured after Year 2000 have a 4 digit date code. A 1999 vintage will have a 3 digital code that ends with a 9, which can also mean it was made in 1989.

A general rule of thumb: Any tire with a 3 digital date code, or a 4 digit date code that ends with a number less than 03, should not be used on a vehicle.

dwarner4 · 09-10-2008, 10:16 PM

True indeed. Good correction...

742 · 09-10-2008, 10:25 PM

And most importantly of all, keep the right pressure.

Just had to put that plug in.

Mech_Man · 09-10-2008, 11:00 PM

Quote:

Originally Posted by undecided

that makes no sense. most tires these days have a significant synthetic component.

It might be synthetic, but that just means it came from dead dinosaurs, not tree blood. Petroleum is converted into synthetic rubber still breaks down. Just look at anything plastic left out in the sun.

Age, weathering, UV, wear from operation will all cause rubber to get stiffer and more likely to crack and delaminate.

Staszek · 09-10-2008, 11:19 PM

Quote:

Originally Posted by smellthebeans

Absolutely!
watch this
http://video.google.com/videoplay?do...89789803&hl=en

As a rule I would not use any tires more than 5 years old. Often tire shops offer deals and sales on tires that are old.

There is no hard and fast rule on how to mark tires with a born on date. All manufacturers do date tires along with other information (lot, plant location, ect ect). It takes some sleuthing to figure out.

Haha, I saw that a while ago and the first thing I did was run to my garage and check all the dates on my tires!

BMW335icDDS · 09-10-2008, 11:41 PM

I guess I should be worried about tires having an expiration date then. My 2007 E93 has less than 2k miles on it.

yoyeewee · 09-11-2008, 02:52 AM

You wouldn't use a 5 year old rubber when you have sex, would you?

visor · 09-11-2008, 03:19 AM

Yep, absolutely.

Even if unused, the rubber in tires will decay over time due to ozone in the air attacking the compound. Worse yet if left out in the sun and elements with UV radiation and heat and cold cycles...

BK · 09-11-2008, 08:52 AM

Quote:

Originally Posted by visor

Yep, absolutely.

LOL - I thought you were responding to the question above you.

StoneCold · 09-11-2008, 11:27 AM

great inputs and thanks everyone taking the time on this issue.

Gary@TireRack · 09-12-2008, 09:17 AM

While tires do not have expiration dates on then, they do have dates of manufacture on them.

Tires degredate very very slowly in storage conditions (out of direct sunlight and the elements, not being heat cycled on a car from daily use, etc..) but once put into use five to seven years (depending on who you believe) is considered to be a safe range of time.

I personally would have no problem installing *unused* tires that are three to five years old, or snow tires that are stored all but four months out of the year.

However, tires that have been on a vehicle and driving for six or seven years have probably lost a lot of their grip and one should consider replacing them. They aren't ticking time bombs like some dramatists might have you believe...

09-10-2008, 07:33 PM	#1
StoneCold Captain 13 Rep 623 Posts Drives: BMW 2008 328i Coupe, Pro 02/08 Join Date: Mar 2008 Location: Vancouver, WA iTrader: (1)	Does tires have an expiration date? Everyone, Does any one know that tires have an expiration date? or expires date? When a spare tires that are not using and seat in a garage. Thanks.
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09-10-2008, 07:37 PM	#2
LEDZEP Lieutenant General 418 Rep 12,276 Posts Drives: 2009 E70 & 2011 F25 Join Date: Jun 2005 Location: Area 51 iTrader: (0) Garage List 2011 X3 35i M Sport [7.62] 2009 X5 M Sport [0.00] 2007 328xi E90 [0.00] 2006 325xiT E91 [0.00]	Seriously? No. __________________ I think it is bad luck to be superstitious
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09-10-2008, 08:00 PM	#4
smellthebeans Lieutenant Colonel 87 Rep 1,555 Posts Drives: LPCs Join Date: Dec 2006 Location: San Antonio iTrader: (2) Garage List 1990 325i [0.00]	Absolutely! watch this http://video.google.com/videoplay?do...89789803&hl=en As a rule I would not use any tires more than 5 years old. Often tire shops offer deals and sales on tires that are old. There is no hard and fast rule on how to mark tires with a born on date. All manufacturers do date tires along with other information (lot, plant location, ect ect). It takes some sleuthing to figure out. __________________
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09-10-2008, 08:13 PM	#5
choiffer First Lieutenant 19 Rep 375 Posts Drives: 08 E92 335i Coupe Join Date: Jul 2007 Location: Philadelphia, Pa iTrader: (0) Garage List 2008 335i Coupe [0.00] 2006 G35 Coupe [0.00]	YES THEY DO. DO not use old tires. __________________ 2008 335i Coupe Alpine White/Black Dakota
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09-10-2008, 08:21 PM	#6
yuyue First Lieutenant 23 Rep 335 Posts Drives: 08' 328i E90 MT Join Date: Apr 2008 Location: LA, CA iTrader: (5)	the answer would be yes. rubber do gets old
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09-10-2008, 08:21 PM	#7
nicknaz Lieutenant General 3187 Rep 10,509 Posts Drives: C6Z Join Date: May 2008 Location: NorCal iTrader: (0)	Yes there is an expiration date. i've heard it is ~5yr from date of manufacture. Tires will dry out, crack etc. no worth it to take the chance. If you have an older car with spare >5yr old, I'd think about getting it replaced
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09-10-2008, 08:32 PM	#9
halB Colonel 53 Rep 2,384 Posts Drives: W211 E350 4M MkV GTI 987.2 S Join Date: Jan 2007 Location: Just north of Toronto iTrader: (0)	http://www.carbibles.com/tyre_bible.html __________________ 07 E93 335i - Returned at lease end 09 W211 E350 4Matic Avant Garde - Blk/Blk, AMG pkg w/18". Sport Susp. F1 Asym. Debadged. 09 MkV GTI w/Leather & 18" Huffs. F1 Asym 10 987.2 S w/Leather sport seat, Sport Chrono, 19" Carrera S II wheels
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09-10-2008, 09:23 PM	#11
dwarner4 Teutonic Enthusiast 9 Rep 105 Posts Drives: '07 E91x Join Date: Oct 2007 Location: CORNHUSKER COUNTRY!!! iTrader: (0) Garage List 2007 E91 328xiT Spo ... [0.00] 2006- SOLD!!!! MAY ... [0.00]	There is absolutely a date on tires. On the Bridgestone run flats its the DKN4805 type number. It's always coded in 4 numeric assignments. 4805 refers to 48th week of 2005. So a new tire would be 3508. 35th week of 2008 or some time in August of '08 manufacture date. If you have a tire that says 5199. Its 51st week of 1999. or too old even if the tread is brand new. Consumer Reports and most manufacturers recommend that a tire past 6 years is too old even if it's "brand New". Retailers will try to sell you the old tires first to get them off inventory.I saw a video where a guy went in and bought a new closeout tire that was 13 years old and looked perfect. The rubber dry rots and the tread separates from the sidewall at high speeds. Make sure you get fresh rubber. It could be life or death... __________________ E91 --- Black on Black
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09-10-2008, 10:16 PM	#13
dwarner4 Teutonic Enthusiast 9 Rep 105 Posts Drives: '07 E91x Join Date: Oct 2007 Location: CORNHUSKER COUNTRY!!! iTrader: (0) Garage List 2007 E91 328xiT Spo ... [0.00] 2006- SOLD!!!! MAY ... [0.00]	True indeed. Good correction... __________________ E91 --- Black on Black
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09-10-2008, 10:25 PM	#14
742 Major 13 Rep 1,187 Posts Drives: E90 325i; F10 528i; 2002tii Join Date: Apr 2006 Location: PA iTrader: (0)	And most importantly of all, keep the right pressure. Just had to put that plug in.
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09-10-2008, 11:41 PM	#17
BMW335icDDS Doctor 32 Rep 634 Posts Drives: RRSport, 335vert, 997 S, Sc430 Join Date: Feb 2007 Location: Los Angeles and New York iTrader: (0) Garage List 2007 Porsche 997S [0.00] 2007 Porsche 997S [0.00] 2007 BMW 335 E93 [9.00]	I guess I should be worried about tires having an expiration date then. My 2007 E93 has less than 2k miles on it. __________________ 2002 Lexus Sc430 2007 BMW 335i Convertible Space Gray on Coral Red 2007 Porsche Carrera S 2011 Range Rover Sport HSE Lux UCLA D.D.S. Columbia University Dental Specialist
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09-11-2008, 02:52 AM	#18
yoyeewee Major 109 Rep 1,052 Posts Drives: 2007 BMW M6 coupe Join Date: Jul 2007 Location: Orange County, CA iTrader: (0) Garage List 2007 BMW M6 [0.00] Previous Ride 2006 ... [0.00] Previous Ride 2007 ... [8.00]	You wouldn't use a 5 year old rubber when you have sex, would you? __________________ 2008 335i coupe Atlantic Blue with Black Leather Steptronic ZSP ZPP NAV PDC COMFORT ACCESS REAR SUNSHADE HEATED SEATS HD RADIO SIRIUS USB/IPOD 20" Klassen K5.1 3-piece wheels w/Toyo Tires Job Design Body Kit M3 Trunk Spoiler Eisenmann Exhaust Eibach Pro-Kit Springs
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09-11-2008, 03:19 AM	#19
visor BMW, can I have some LSD please? 88 Rep 1,591 Posts Drives: 2017 F30 340i xDrive Join Date: Jun 2005 Location: Vancouver, Canada iTrader: (0)	Yep, absolutely. Even if unused, the rubber in tires will decay over time due to ozone in the air attacking the compound. Worse yet if left out in the sun and elements with UV radiation and heat and cold cycles... __________________ 2006 330i \| TiAg \| Black \| Al \| 6MT \| Sports Package \| Logic 7 retired 2008 335i \| AW \| Black \| Al \| 6MT \| Sports Package \| Logic 7 retired 2013 328xi \| Red \| Gray \| Al \| 8AT \| Sports Line \| Premium \| Executive \| Heat Pkg retired 2017 340i xDrive \| Estoril \| Black \| Al \| 8AT \| M Package
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09-11-2008, 11:27 AM	#21
StoneCold Captain 13 Rep 623 Posts Drives: BMW 2008 328i Coupe, Pro 02/08 Join Date: Mar 2008 Location: Vancouver, WA iTrader: (1)	great inputs and thanks everyone taking the time on this issue.
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09-12-2008, 09:17 AM	#22
Gary@TireRack Moderator 369 Rep 4,745 Posts Drives: Formerly 1995 M3 Join Date: Oct 2006 Location: South Bend, IN, Tire Rack HQ iTrader: (2)	While tires do not have expiration dates on then, they do have dates of manufacture on them. Tires degredate very very slowly in storage conditions (out of direct sunlight and the elements, not being heat cycled on a car from daily use, etc..) but once put into use five to seven years (depending on who you believe) is considered to be a safe range of time. I personally would have no problem installing unused tires that are three to five years old, or snow tires that are stored all but four months out of the year. However, tires that have been on a vehicle and driving for six or seven years have probably lost a lot of their grip and one should consider replacing them. They aren't ticking time bombs like some dramatists might have you believe... __________________ Gary. Tire and Wheel Forum Moderator. Tire Rack Sales Rep Gary@Tirerack.com http://www.tirerack.com/a.jsp?a=AH8&url=index.jsp Please refer to 'Gary/E90 Post' as your previous contact when you order online to help support this forum.
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