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Old 06-14-2010, 03:41 PM   #13 (permalink)
MetroMPG
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,370

Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 52.07 mpg (US)

Winter beater Metro - '00 Chevrolet Metro
90 day: 61.98 mpg (US)

Fancy Metro - '14 Mitsubishi Mirage top spec
90 day: 58.72 mpg (US)

Even Fancier Metro - '14 Mitsubishi Mirage top spec
90 day: 70.75 mpg (US)

Appliance car - '14 Mitsubishi Mirage ES (base)
90 day: 50.04 mpg (US)
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As for the question of whether to remove the AC components, ask yourself why did you get a carbon fiber hardtop?

OK, maybe it was given to you free, so you didn't have to buy the fiberglass version .

But the short answer of course is of course less weight is better. Will you notice any effect of taking out 20-30 lbs? Likely not. So is it wasted effort? I'd say no. Colin Chapman had it right.

I also think a 5% gain from lowering is overstating things a bit. But lowering is a tactic automakers commonly use on "eco" versions of cars (Chevy Cruze the latest example). Results will vary from vehicle to vehicle.
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Ecodriving test: Manual vs. automatic transmission MPG showdown



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