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Old 09-24-2011, 05:00 PM   #2 (permalink)
MetroMPG
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 21,235

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

MPGiata - '90 Mazda Miata
90 day: 52.8 mpg (US)

Winter beater Metro - '00 Chevrolet Metro
90 day: 73.57 mpg (US)

Fancy Metro - '14 Mitsubishi Mirage top spec
90 day: 55.99 mpg (US)
Thanks: 2,988
Thanked 5,873 Times in 3,045 Posts
Weather, Sat., Sept. 24, 2011

Overcast / damp roads (not wet - no road spray; from light mist earlier in AM)

Metric units
Time ... C ... Humidity ... Dew point ... Wind kph ... Press kPa
14:00 ... 19 ... 89 ... 17 ... SW 7 ... 101.7
13:00 ... 19 ... 94 ... 18 ... SSW 5 ... 101.7

Imperial units
Time ... F ... Humidity ... Dew point ... Wind mph ... Press in.
14:00 ... 66 ... 89 ... 63 ... SW 4 ... 30.02
13:00 ... 66 ... 94 ... 64 ... SSW 3 ... 30.03

A: 2-wiper delete (1 front, rear); grille block; passenger mirror delete, driver's folded; licence plate bracket delete
B: stock config

Speed: 80kph / ~1728 rpm

A ... w ... 86.4 ... 89.0 ... 90.9 ... 91.4 ... 91.4
A ... e ... 97.0 ... 99.1 ... 99.1 ... 101.0 ... 102.2
A Average (W & E): 94.8 MPG

B ... w ... 78.2 ... 71.7 ... 75.9 ... 74.0
B ... e ... 90.9 ... 92.1 ... 91.1 ... 89.5
B Average (W & E): 82.9 MPG

A ... w ... 90.2 ... 90.4 ... 89.3
A ... e ... 98.7 ... 98.7 ... 99.1
A Average (W & E): 94.4 MPG
Average all "A" runs: 94.6 MPG

Standard deviation of all A runs (averaged bi-directional pairs): 1.5 MPG
Standard deviation of all B runs (averaged bi-directional pairs): 1.3 MPG

Difference of A over B: 11.7 MPG / 14 %

MPG readings taken by resetting OEM segment fuel economy calculator when passing a chosen signpost after getting the vehicle up to speed & stabilized. Final reading taken at a second signpost at the end of the route. (One update of the OEM display.)

Route: 1.6 km straight and flat section of smooth road, with no other vehicles ahead in my lane; occasional vehicles in opposite direction.

No cruise control. Speed was controlled by watching RPM instead of the digital speedometer readout, because the speedo gives no indication of rising/falling speed until the next higher/lower digit is shown. RPM has higher resolution.
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Latest mods test: 15 mods = 15% MPG improvement: A-B test, 2007 Honda Civic 1.8L, 5-speed
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Manual vs. automatic transmission MPG showdown: Nissan Micra 1.6L



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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