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Old 11-19-2013, 05:57 PM   #7 (permalink)
MetroMPG
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,530

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

MPGiata - '90 Mazda Miata
90 day: 54.46 mpg (US)

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

Appliance car Mirage - '14 Mitsubishi Mirage ES (base)
90 day: 62.14 mpg (US)
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Quote:
Originally Posted by RedDevil View Post
The rear wheel wells add a lot of turbulence, but shielding them over reduces that and increases the drag caused by the corner.
That's a neat theory - I like it. And I agree it's probably worth adding a trip strip at the rounded rear bumper corner.

The new Mirage has this (as do most new/redesigned high-efficiency cars/hybrids):



Another way to deal with the testing question is to look at the margin of error in your set of results. IE - compare how much variability there is within the A & B sets against the difference between the sets.
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Project MPGiata! Mods for getting 50+ MPG from a 1990 Miata
Honda mods: Ecomodding my $800 Honda Fit 5-speed beater
Mitsu mods: 70 MPG in my ecomodded, dirt cheap, 3-cylinder Mirage.
Ecodriving test: Manual vs. automatic transmission MPG showdown



EcoModder
has launched a forum for the efficient new Mitsubishi Mirage
www.MetroMPG.com - fuel efficiency info for Geo Metro owners
www.ForkenSwift.com - electric car conversion on a beer budget
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