Thanks for clarifying.
Quote:
Originally Posted by Ernie Rogers
...
"Tire rolling resistance varies inversely with tire pressure." It should be more valid toward higher pressures.
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Darin actually did some coastdown testing based on psi, found the returns diminished sharply at a bout 45psi in his particular case:
http://ecomodder.com/forum/showthrea...ures-2721.html
"0.9%"
Yah, that is tough to discern on the street, even with accurate fuel consumption feedback.