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Tire Dry Rot
04-27-2014, 02:07 PM
Post: #1
Tire Dry Rot
Dry Rot is on all 6 of my Ford 1994 E 350 Motor Home tires. But it is very slight. Where the brand name letters travel around the tire, slight cracks. They all hold the recommended 60 psi, no leak down. Still like new full tread. Should I be worried and spend $1500 for a set or is anything recommended to treat dry rot? Thank you.
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04-27-2014, 03:50 PM (This post was last modified: 04-27-2014 03:52 PM by Rupe.)
Post: #2
RE: Tire Dry Rot
The only way to treat dry rot is to do so BEFORE they rot. IOW, keep tires out of the sun, reduce heat exposure, and if you are fussy there are places that will fill the tires with nitrogen instead of straight air. This reduces ozone exposure plus gives a more stable pressure between hot and cold temps.

Age of the tires is another thing to consider and some larger chain stores are now pushing for an age limit where they will not even mount tires after a certain amount of years. IOW, they don't want the liability. Typically this is in the 6-8 year time line.

Here's a quick article on how to decipher the date codes on your tires if there are at least 4 digits. 3 digits is the old code standard, which means the tire was made before 2000 so already 14 years old.

http://www.tirerack.com/tires/tiretech/t...27184137:s

Edited to add: the amount of worry depends on how bad they are and how far you plan to travel. A blow out at speed can be a disaster. Your call here.
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04-27-2014, 09:32 PM
Post: #3
RE: Tire Dry Rot
Rupe, thanks for great information plus a great tire info website. The tire manufactured "week & year code" stamped on the sidewalls is 5100. 51st week of 2000. I use the motorhome 99% of the time local, less than 100 miles from home, country roads, 50 or 55 mph. I'll replace the front two soon and the back dullies latter. The tire website you referred me to also had my make and size for a very fair price shipped to a recommended installer in my area. Thanks for good info, enabling me to make the right decision.
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04-27-2014, 11:40 PM
Post: #4
RE: Tire Dry Rot
BTW, now you know why you see some people in campgrounds with "tire covers" to keep the sun / heat away. I always thought it looked a bit odd but it really makes sense in the long run!
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