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Old 09-03-2009, 01:17 PM   #9 (permalink)
MetroMPG
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,513

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

MPGiata - '90 Mazda Miata
90 day: 52.71 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: 60.16 mpg (US)
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Quote:
Originally Posted by wagonman76 View Post
There are just way too many scenarios to try and add any new ratings.
Strongly disagree!!

While I think adding another "let's see if we can simulate another trip to grandma's house" kind of test would be pretty much useless, I'd very much like to see "pure" data as Carlos mentions.

EG. a chart of fuel economy plotted every X units from 50-120 km/h (30-70 mph) in top gear would be excellent for evaluating the efficiency performance of different vehicles.

Such as: http://ecomodder.com/forum/showthrea...05-a-9841.html



Quote:
But I would like to know how they come up with the ratings. What is city? LA rush hour?
Here's how the EPA test cycles work:

CITY:



HWY:



They've twice added "fudge factors" to the actual numbers obtained from these test cycles. Also there are other, newer tests plus more detailed information about the above, here:

Fuel Economy Test Schedules
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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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