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Old 11-27-2007, 11:11 PM   #2 (permalink)
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
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Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 55.97 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: 67.41 mpg (US)
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09-06-2007, 11:08 PM

Pretty ideal conditions. Test approach was A-B-C-A, where...

A = no mods in place;
B = rear wheel skirts
C = rear wheel skirts plus "fairing" behind the rear OEM mud flap where the lower aft edge of the skirt was attached

I'll post details and pics tomorrow, but here's the nut shell:

- 3 bi-directional runs (6 one-way runs in each direction) for each of A,B,C,A
- Speed was 85 km/h, cruise control set once, cancelled by brake between runs, (flat, deserted road, little to no wind, no traffic in my lane; infrequent oncoming cars)

A average = 50.24 mpg (US)
B average = 50.53 mpg (US)
C average = 50.62 mpg (US)

This was on a 2007 Corolla automatic. I probably should have run this at a higher speed, like 95 km/h, to eke out more significant results.
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

has launched a forum for the efficient new Mitsubishi Mirage - fuel efficiency info for Geo Metro owners - electric car conversion on a beer budget
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