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Old 01-08-2008, 01:24 PM   #1 (permalink)
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,461

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: 61.17 mpg (US)
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New: Ford mods their Super Duty pickups ... chin spoiler + final drive changes

Via ABG &

"Ford is replacing standard 3.73 ratio rear axles on certain F-250 and F-350 Super Dutys with 3.55 running gear and has lengthened the underbody chin spoiler by 100-mm (3.93-in)."

Ford trucks spokesperson Wes Sherwood says, "We are making the 3.55 standard and when that's combined with new front-end aerodynamic improvements, there will be about a 1.5 miles-per-gallon improvement."

It's difficult to quantify the fuel economy improvement in percentage terms because three-quarter and one-ton heavy duty pickups aren't required to carry EPA mileage ratings. But this could mean as much as a 10 to 15-percent improvement for some drivers, depending on how they use their truck.


"Fuel economy is on people's minds right now and we're not going to wait until the next model year to make a change. We're going to implement changes like this as soon as we can."

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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