He obviously was a 'lot' less knowledgeable than he let on eh.

The BS artists that figure if you can't dazzle em with brilliance,
baffle em with BS are in real trouble because of the internet.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's - Gone to the rust pile...
Canadian Off Road Trips Photos:  Non members can still view!
Jan/06 http://www.imagestation.com/album/pictures.html?id=2115147590
(More Off Road album links at bottom of the view page)

Joe <joe5345@gmail.com> wrote in news:1186697679.797965.211030
@m37g2000prh.googlegroups.com:

I suppose when customers drive out with higher pressures, this results in
fewer comebacks than when they leave with lower pressures. Few people check
their tires on a regular basis, so...

He probably overinflated to seat the beads, then dropped it down a bit
after. Lower the pressure yourself (cold!) back to 30. You may find your
tires spec at about 45psi max pressure, so that brief visit to 40 did no
damage.

Say, do your new tires vibrate at around 55-60 mph? Just asking.

He's not.

WIdepsread ignorant misconception that the pressure on the side of the
tire is a recommendation.  Weight of vehicle, spring rates, center of
gravity, propensity to oversteer/understeer, roll center, front/rear
weight bias etc. etc. are all factors that affect optimum tire
pressureas much as the tire itself.  Thus the "PLACARD ON VEHICLE"
that the writing on the tire tells you to reference.  Unfortunately,
most lube franchise and tire store employees are not capable of
reading that far.  There is also a widespread ignorant belief that
since the perils of underinflation are well known it follows that the
more air the better.

I would trust Honda's chassis engineers long before some Firestone
dude and so should you.

Don
www.donsautomotive.com

Because he knows more about tire pressure than the engineers who designed
your car.

The pressure marked on the sidewalls is a maximum, usually needed to
reach the maximum load capacity of the tire (which is also marked on
the sidewall) but not necessarily where the best handling is found
with more-normal loads.  That, as you surmised, varies from car to car
and is found on a door panel or in the owner's manual or some other
place specific to the car.

See for instance
http://www.tirerack.com/tires/tiretech/techpage.jsp?techid=147&currentpage=1

Racers and advanced sports car enthusiasts might "chalk" tires or use
pyrometers to fine-tune the best tire pressure for what they are
doing, or will bias it in a certain direction to get a specific
cornering result; but regular folks doing ordinary driving, and who
haven't made  suspension mods or major changes in the size and type of
tire, will probably find the best advice on the door panel.

If you're going to err, it's better to be a bit overinflated (within
the sidewall rating) than grossly underinflated.  But why err when you
can be right?   Remember to take the readings "cold" (i.e., before
doing much driving) and to re-check every few weeks or before a long
trip, whichever comes first -- tires lose air over time, and sometimes
just one of them will do it faster.

Cheers,
--Joe