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From: nzm10@amdahl.UUCP (Neal Macklin)
Newsgroups: net.auto
Subject: Re: tire inflation pressures
Message-ID: <1765@amdahl.UUCP>
Date: Tue, 9-Jul-85 23:31:10 EDT
Article-I.D.: amdahl.1765
Posted: Tue Jul  9 23:31:10 1985
Date-Received: Sat, 13-Jul-85 08:41:57 EDT
References: <572@hlwpc.UUCP>
Distribution: net
Organization: Amdahl Corp, Sunnyvale CA
Lines: 44

> I just bought new Michelin XH tires for my not-very-sporty
> 1980 Chevrolet Malibu, and the guy who installed them told
> me to keep the pressure at 34-35 pounds cold.  That's the
> pressure listed on the sidewall as maximum.  I've always
> kept my tires inflated to the manufacturer's recommendation
> printed in the manual and the door sticker (which for my
> Malibu is 26 pounds in front and 29 pounds in the rear)
> When I questioned the tire installer about his, he said
> in no uncertain terms to ignore the mfgrs. recommendation
> and keep them filled to the tire maker's maximum.
> 
> Seems to me the installer should know his tires, but I'm
> reluctant to believe him without further comments.
> Can anyone confirm or deny this recommendation?
> 
> Carl Blesch

Carl,

I have a 77 Trans Am and have always kept the tires at the tire
manufactures maximum (checked cold).  Mileage is better, and the tires
are wearing fine (over 55K so far).

The Trans Am has a stiff ride anyway, but I'm sure that my
high inflation isn't helping.  It definitely corners better
at the high pressure.  You should watch your tires for center wear
if you do this, but I doubt you'll see any.  In fact, you'll probably
see edge wear if you don't do this (and leave the tires at
glove compartment spec. (low)).

Car manufacturers seem to be more concerned with getting a softer ride
than with tire wear and possibly reduced cornering.  Though I thought
they were supposed to be concerned with mileage....

You'll know your tires are too high if things are shaking loose from
the car when you go over bumps!

Good Luck.
-- 
				Neal Macklin
				(408) 737-5214
				...{hplabs,ihnp4}!amdahl!nzm10

              [There are no opinions expressed in this article].