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Old 24 Apr 2009, 05:45 am
Elmo P. Shagnasty
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Default Re: Highest MPG for Non-Hybrids?

In article <3p52v4hui7nn4dtv6q8jl75mnnqd95f6ol@4ax.com>,
Dillon Pyron <invaliddmpyron@austin.rr.com> wrote:

> Running your tires at 38 psi may be bad for them and dangerous for
> you. When you heat those puppies up to 200 F or so (get a pyrometer)
> you'll probably be around 45. Which is probably near the realistic
> limits.


The tires are stamped with their maximum cold pressures, and the
manufacturers give those specs knowing exactly what will happen when the
tire heats up.

If the tire is specified to take 38psi or more, then there's no danger.
It may go up to 45 or even 50psi when run on the freeway on a hot day;
the tire manufacturer has taken all of that into account for you.

My Prius specifies 36psi, for God's sake.
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