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Old 01-28-2013, 12:56 PM   #4 (permalink)
Stubby79
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Join Date: Sep 2012
Location: Victoria, BC
Posts: 1,747

Firefly EV - '98 Pontiac Firefly EV
90 day: 107.65 mpg (US)

Little Boy Blue - '05 Toyota Echo
90 day: 33.35 mpg (US)

BlueZ - '19 Nissan 370Z Sport
90 day: 17.19 mpg (US)
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Quote:
Originally Posted by jakobnev View Post
Maybe a coast down - clutch in vs clutch out and the ignition off, would give you meaningful data.
Playing around with this is what gave me the thought in the first place. I've found it pretty pointless to use the engine to slow the car down unless you start a mile ahead. You gear down and barely anything happens, whereas in my other vehicles, you gear down and the engine is slowing you down more than the brakes until you get down to about bicycling speed. (call it 20mph)

At higher speeds, the air drag slows you down more than the geo engine does. Hmm...maybe using that information coupled with the "Aerodynamic & rolling resistance, power & MPG calculator", I can get an idea of how much power it's using to spin the engine...
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