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- Newsgroups: rec.autos.tech
- Path: sparky!uunet!usc!sol.ctr.columbia.edu!spool.mu.edu!agate!dog.ee.lbl.gov!news!nosc!halibut.nosc.mil!koziarz
- From: koziarz@halibut.nosc.mil (Walter A. Koziarz)
- Subject: Re: What is current wisdom on rotating tires (tyres)?
- Message-ID: <1992Nov5.134322.22747@nosc.mil>
- Sender: usenet@nosc.mil (Network News)
- Organization: Naval Ocean Systems Center, San Diego
- References: <1992Nov4.205441.26521@cbnews.cb.att.com> <Bx7n5p.1Go@mentor.cc.purdue.edu>
- Date: Thu, 5 Nov 1992 13:43:22 GMT
- Lines: 43
-
- In article <Bx7n5p.1Go@mentor.cc.purdue.edu> mshar@mentor.cc.purdue.edu (Mike Mshar) writes:
-
- >Here is how it was explained to me. Most of this is coming right out of a
- >book that is called "Chilton`s Easy Car Care", so I assume it to be
- >factual.
-
- *not* necessarily a good assumption...
-
- >If your car does have radials, only rotate front to back. I will just quote
- >the book for this one...
-
- >"There are certain exceptions to tire rotation, however. Studded snow tires
- >should not be rotated, and radials should be kept on the same side of the
- >car (maintain the same direction of rotation). The belts on radial tires
- >get set in a pattern. If the direction of rotation is reversed, it can
- >cause rough ride and vibration."
-
- >So there it is...
-
- >BTW this book was written in 1985, so it is reasonably current.
-
- Well, actually, Mike... it *isn't* current enough... This provides a wonderful
- example of why the 'net' is not the pllace to turn for this question. Since
- one printed reference was quoted above, I'll counter with another...
-
- pg 22-9, 1990 Rear Wheel Drive Truck Service Manual, Copyright 1989, Chrysler
- Motors --
-
- "The suggested methods of tire rotation ... are illustrated below (Figs. 8 and
- 9). The methods are completely compatible with the tire industry's currently
- recommended procedure for rotation of radial-ply and bias-ply tires. Other
- rotation patterns/methods can be used, but they will not necessarily provide all
- the tire longevity benefits that are derived from the suggested methods."
-
- Fig 8 depicts rotation pattern for single-rear wheel vehicle both with and
- without spare and shows 'rearward-cross' pattern
-
- Fig 9 depicts same for a dual-rear wheel vehicle.
-
- So you see, your tire's manufacturer or representative there-of is the only
- reliable source for the *correct* rotation pattern/method...
-
- Walt K.
-