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Old 05-23-2009, 08:12 AM   #12 (permalink)
dcb
needs more cowbell
 
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pimp mobile - '81 suzuki gs 250 t
90 day: 96.29 mpg (US)

schnitzel - '01 Volkswagen Golf TDI
90 day: 53.56 mpg (US)
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Thanks for clarifying.
Quote:
Originally Posted by Ernie Rogers View Post
...
"Tire rolling resistance varies inversely with tire pressure." It should be more valid toward higher pressures.
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.
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