Gas Mileage and Tire Pressure

From: Zachary Burcham (roadking_dakota@hotmail.com)
Date: Wed Jun 29 2005 - 08:09:51 EDT


>The max tire pressure is just that - the maximum the tire is rated to
>run at safely. You normally won't get up this high unless you're
>hauling a hefty load. Recommended operating tire pressures are well
>below the tire's max and are included in a little booklet that comes
>with the truck's manual.
>
>- - --
>- - -andy
>

I had a real question about this comment at the end of the above paragraph.
Do you really use the vehicle manufactured specs on tire pressure if you are
running anything but OEM tires? Point being I'm currently running 235/75
Dueller A/T Revos on my 92 CC 2WD. These tires have a max PSI of 45, I run
them at 42 normally. My last tires had a max pressure of 35 PSI (Firestone
Wilderness A/Ts, same size) and I don't even remember what the pressure was
on the tires that came on the truck when I got it in 1999. But I just see
that with so many variances in tires that the booklet that came out in 1992
for my truck, wouldn't be able to accurately cover these situations and
would really fall short if I was running a low profile tire, which can hit
60 PSI on the max end. Anyone's input on this would be great, it's just
stumped me for a bit as I follow the tire's specs, but hear it both ways.

Zachary Burcham



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