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Old 03-18-2008, 08:22 PM   #6 (permalink)
Harpo's Avatar
Join Date: Mar 2008
Location: Gainesville, FL
Posts: 79

Harpo's Honda - '05 Honda Civic VP
90 day: 42.64 mpg (US)
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Originally Posted by boxchain View Post

Got numbers on idle fuel flow with AC on/off?

Yep. At steady state 35-55mph w/ AC fuel Flow is .20-.24 gph higher. On decel, from 55-30mph, with or without AC on Fuel flow is zero. It makes sense that I won't glide as far because there is additional engine load, albeit without fuel flow. At idle, in NEUTRAL, AC Fuel flow is .16gph higher (in my case - .25gph No AC to .41 gph W/ AC)

Today was a banner day, even with AC on decel this afternoon. 49.7 miles round trip. 40.7mpg or $4.11 for the trip.
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