Comments on: Are Your Tires Safe?

By: ITS Admin

ITS Admin — Wed, 03 Feb 2010 13:59:06 +0000

Thanks for the comment, great addition to the article!

~ Bryan

By: HM2Welch

HM2Welch — Wed, 03 Feb 2010 10:17:40 +0000

I used to work at a popular tire chain. We were always taught the same information. That the rubber in the tires starts to deteriorate at 6 years and we were not allowed to work on any tire older that 10 years. Also, I never saw any tires with Julian dates. Just a 4 digit code WWYY. As far as placement on the tire, there is string of numbers on the sidewall, Occasionally on both sides of the tire. However, the date code is only on one side. It will be the side with 4 extra digits, the last 4 is the date code. The information about it being the inner sidewall is incorrect. Many tires are reversible, allowing either side to be mounted outward. Commonly they will have white on one side and black on the other. Then there are directional tires, tires designed to travel in one direction. This mean that on the left side of the car one side will face out while on the right side, the other side will face out. The last type is an asymetrical tire, and in this case, there is an inside and outside to the tire. Hope this helps.

By: ke4sky

ke4sky — Wed, 13 Jan 2010 14:52:23 +0000

Julian date system is also very common in US commercial ammunition lot numbering.

By: Storm1

Storm1 — Wed, 13 Jan 2010 12:12:45 +0000

Nice info thanks for posting!

Also the automotive industry and many other industries uses the Julian dating system which designates days and not weeks: example: 145B05
145th day of the year
B was shift produced on (B=2nd shift)
05 is year 2005. The shift designation (A,B or C) may not always be present that is entirely up to the manufacturer that is producing the parts/supplies

By: wrestlingnrj

wrestlingnrj — Wed, 06 Jan 2010 14:32:02 +0000

I’ll have to check my family’s tires out for them. I’m not too worried about mine since I tend to try out a lot of new models of high performance tires on my car.

By: Norm

Norm — Wed, 06 Jan 2010 14:22:15 +0000

OUCH…I’ll be checking out all my tires and wifes when I get home tonight.

But, just how dangerous is this?

Also, does climate affect it?

I may have to do some digging here. If I find anything I’ll let y’all know.