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Old 05-11-2007, 08:05 AM
livvie livvie is offline
Ridiculously Active Enthusiast
 
Location: New England
Hybrids: 2003 HCH CVT & Side Airbags
Posts: 1,442
Default Re: Tire pressure and fuel econonmy

Quote:
Originally Posted by TonyK View Post
Thats amazing Livvie.

On my o2 Prius I lose about 1 mpg per pound of pressure.

I do NOT have low rolling resistance tires, maybe you do and maybe this makes a difference.

When my pressure drops to 45psi, I struggle to get 50mpg.
yes, I have low rolling resistance tires. they are a dedicated summer set (not for use in the snow (winter month)).

This is what I have:
http://www.tirerack.com/tires/tires....nSpeedRating=S

And here is a report on lrr tires.
http://www.greenseal.org/resources/r...resistance.pdf
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