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Old 06-18-2015, 11:58 AM   #2 (permalink)
MetroMPG
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,527

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 - '14 Mitsubishi Mirage ES (base)
90 day: 65.39 mpg (US)
Thanks: 4,078
Thanked 6,976 Times in 3,612 Posts
A-B testing and results...




Conditions:

Temp 16 C / 61 F
Wind NE 13 km/h / 8 mph
Pressure 102.4 kPa
Humidity 42%

Test route:

Flat 2-lane highway; no traffic in my lane; occasional oncoming traffic; ~80% of the distance in a forested area (sheltered from NE breeze).



Results:

52.5 mpg (US) = 4.5 L/100 km = average, all A runs

47.0 mpg = 5.0 L/100 km = average, all B runs

11.6% / 5.5 mpg US improvement, A over B

------

I'd call that a healthy success. Some of these mods could be re-done and made to look OEM, too.

------

Raw numbers:

Code:
A (mods in place)

North ... South ... Average (MPG U.S.)
53.2 ... 52.3 ... 52.8
53.1 ... 51.6 ... 52.4
52.6 ... 52.4 ... 52.5
53.5 ... 51.2 ... 52.4

B (all mods removed/reversed)

North ... South ... Average (MPG U.S.)
46.4 ... 46.9 ... 46.7
47.3 ... 47.0 ... 47.2
48.2 ... 46.0 ... 47.1
48.1 ... 46.4 ... 47.3

STDEV all A runs: 0.5
STDEV all B runs: 0.7
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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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