I like the "80% rule", but I usually go to 85%.

Maybe it's not what one is "supposed" to do, but I've been told the "book"
pressures are a compromise between comfort and performance, and I've always
found the "book" pressure resulted in heavy handling and an admittedly
softer ride.
I prefer the feel of higher pressures, and I've never had a tire problem in
40 years of driving this way.

----------
> From: Bill Davidson <wdavidson@THEGRID.NET>
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: tire pressure
> Date: Thursday, June 08, 2000 8:28 AM
>
> > It is, as Joel says, a matter of intelligently adjusting based on what
> feels
> > good for that particular tire.  Les Schwab, the chain I bought my Kumho
> 852s
> > at, filled them all to 35 psi, which felt too loose.
>
> Larry,
> Feel is important... to a point... and that is the minimum allowable tire
> pressure. If you want to know that number the tire dealer should be able
to
> provide that information. I had some tires on my SUV and it felt too
> stiff.... the dealer brought up the information on his computer (or
called
> the tire distributor, I forget which) and he gave me a chart the listed
tire
> pressures for the weight of my vehicle.... this method of determining
> minimum pressure may be more accurate that Joel's suggestion of 80% of
> maximum pressure listed on the tire's side wall.
> Bill
> 90 Westy Syncro