A little correction here on the date code-
The first 2 numbers are the week of manufacture.

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Shawn MacDonald
Sent: Tuesday, May 11, 2010 8:05 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: TIRES

I don't disagree with Dennis, but the number one enemy is sunlight (UV).
Ultra Violet light breaks rubber down quickly. Simple RV tire covers
will greatly increase the life of your tires.

Tires aren't meant to last forever either... 10 years is the maximum
lifespan.

There's a date code burned into an oval in the side wall. On tires made
after 2000 it's the last four digits.

The first two numbers are the month of manufacture (01 to 52) and the
last two are the year. So a tire with DOT U2LL LMLR 5107 on the sidewall
was made in the 51st week of 2007.