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Old 08-10-2010, 10:44 PM   #11 (permalink)
A madman
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Join Date: Mar 2008
Location: WV
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Pequod - '17 Subaru Outback
90 day: 22.79 mpg (US)
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I still think with cars with power to spare, hills can actually increase mileage with proper technique. I'll do 95 mph down them, and 55 mph up them in top gear (god bless the third lane) and this mileage usually bests my flat land mpg by a few%.

I'm going to have to try to see a measurable difference with extra weight, as I also feel if it has power to spare, it can essentially have a bigger 'battery' with more weight. (More kinetic energy stored in the mass of the car)

Or maybe I'm just crazy.

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