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Old 11-05-2010, 06:40 PM   #3 (permalink)
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,472

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: 72.89 mpg (US)
Thanks: 4,017
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Welcome to the forum, dchd -

The big question is: 70 MPG in what type of driving?

EG. Chang's 100+ MPG numbers came from hard-core, medium-speed (~30-50 mph) pulse & glide driving, primarily.

I'd say that striving for 70 MPG on the highway at anything close to "normal" cruising speeds (60 mph minimum) will require something like the VX lean burn motor (which was Ben's - SVOboy is his username - previous project with his CRX). Or the Insight drivetrain, as mentioned.

(I don't think Ben has any plans to come back and finish that :-P)

He was getting decent numbers on the highway from the VX drivetrain version of his CRX without trying too hard. (And without many aero mods.)
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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