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Path: utzoo!decvax!decwrl!sun!amdahl!dss00
From: dss00@amdahl.UUCP (dss00)
Newsgroups: net.auto
Subject: Tire Questions (info request)
Message-ID: <1839@amdahl.UUCP>
Date: Thu, 25-Jul-85 18:14:20 EDT
Article-I.D.: amdahl.1839
Posted: Thu Jul 25 18:14:20 1985
Date-Received: Fri, 26-Jul-85 11:58:28 EDT
Distribution: na
Organization: ..{ihnp4, hplabs}!amdahl!dss00
Lines: 35


I just bought 4 new tires for my Accord. As usually happens with
most of my purchases, I have a few questions about what I bought
after the fact.

The tires are Michelin MX, Size P175/70R13. I have the following
questions, and would appreciate answers from any one in the know.

1. The original tires were size 155SR13. The tire dealer said that
   P175/70R13 are acceptable size replacement for 155SR13. As far as
   I know, the main difference is the 175 mm width of the new tires
   as against 155 mm width of the old ones.
   What I am not sure about, is the overall size (outer diameter)
   of the new tires compared to the old ones ?
   It may affect the speedometer/odometer.
   
2. After I drove home, I noticed that two of the tires are made in
   U.K. and have marking "P175/70R13 82T", where as the other two
   are made in W. Germany and have marking "P175/70R13 82S".
   My question is - what does the 82S and 82T mean? Does it have any
   bearing upon the rating/performance/life of the tires? Also, is
   it necessary to have the tires with identical markings on
   the same axle (at present they are not, each axle has one 82S and
   one 82T)? The tires are identical otherwise i.e. the traction grade,
   temperature grade, tread design and all other markings are identical.
   
Any help would be appreciated.

Incidentally, the tires are no longer marked for tread wear rating, nor
do they carry any tread wear warranty.
-- 

Deepak S. Sabnis ...!{ihnp4,hplabs,amd,nsc}!amdahl!dss00    (408) 746-6058

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