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Old 07-25-2008, 09:20 AM   #2 (permalink)
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,457

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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Hi Justin - welcome to the forum.

Congrats on learning to adjust the nut behind the wheel. 40% over EPA is nothing to sneeze at!

As for aero mods, my own experience has shown that the fuel economy gains from each individual mod I've investigated are about 2-3% at around 55 mph:

Of these, you might as well do the easier ones first.

1. partial grille block (it'll also help with faster engine/transaxle warm-up)
2. passenger mirror delete, with inside convex replacement
3. underbody paneling

Some might suggest wheel skirts before underbody paneling, but I think rear skirts are likely less effective on larger cars than on small cars where the wheels are at the extreme rear of the vehicle.
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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