Re: [Chrysler300] Bias Tires and Longevity

[Ray Jones <hurst300@xxxxxxxxxx>]

OK, Here's my experience. 
Start with a 1990 Plymouth Voyager bought new in 1989. NEVER let the spare down.
Had a flat going to town one day, maybe 2006. let the spare down and it had exploded, who knows when, but was in shreds.

1965 Chrysler 300 L parked with new tires on it, 10 years later 3 had exploded, in place. 1 was flat which may be why it didn't explode.
1970 300 Hurst Parked in barn, ALL 4 tires exploded in place sometime in a 10 year span.

I understood it was due to crapper/cheaper/poorer rubber compounds. 
I have many older Bias-ply tires and none have exploded. I have very old radials and they seem ok also. I'm not gonna drive, even at lower hi-way speeds, on an old modern Radial. I believe that in the last 10 years or so, the rubber has been compromised. 

By the way, the "L" was parked in Rook's Pine Forrest, on a deep bed of pine needles, sorta got covered with needles and when brought to my place. cleaned up.
My detailer (Wife Jo Ann) went thru it and there in no rust that wasn't there when parked 10 years prior, even after removing all the carpet. Solid floors and trunk. 

Ray in Arkansas

This one was on my '66 300 Vert and still holds air. Note the tread still deep. Few miles, lots of time...


 
On Sep 2, 2011, at 3:46 PM, Michael Moore wrote:

Ryan, 
I have seen folks back away from saying any tires are good past 6 years or at the most 10 years. People get on the safety soapbox and you'll soon feel gulty!
For me, its a waste of money to replace perfectly good looking unworn tires with low miles because they're 6 years old!

So I tracked down and finally got an honest to God tire engineer at the head office in the US for Michelin, and was able to have a good discussion with him about it. He made me stop using the word "unsafe". He said that old tires were not unsafe, they would just go flat and I should not scare people. He said how long a tire can last was a function of how it was stored. In my case, in a cool garage outside of sunlight was perfect. He said if he was going to drive tires past 10 years, he'd have a tire broken down and inspect the INSIDE of the carcass  for cracking, assuming the outside is ok. Also, I am a conservative driver. (I am no longer 25 driving my 300H at 135 mph on I 20! )

So, I took one of my like new 12 year old tires off of my TR3, had it broken down and inspected, replaced it and drove the car from Morgan Hill, Ca to Lake Tahoe and back, and drove the tires for  another 2 years. I finally replaced them in order to put the correct sized tires on the car.
Mike Moore
300H   



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