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Old 05-13-2013, 10:48 AM   #6 (permalink)
MetroMPG
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,530

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 Mirage - '14 Mitsubishi Mirage ES (base)
90 day: 62.14 mpg (US)
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Quote:
Originally Posted by CapriRacer View Post
The fuel economy of tires is strictly a distance sort of thing. So tires with low RR work better in highway situations. The benefits are there for city driving, but it doesn't come out as strongly.
This is undoubtedly true for the average driver.

But eco-drivers / hypermilers who maximize neutral coasting up to turns/stops (ie. minimize brake pedal use) will definitely see a marked improvement in sub/urban fuel economy with reduced rolling resistance, IF they're able to take advantage of the longer coasting opportunities. (Not everyone is - depends a lot on driving environment.)

I saw a significant efficiency improvement in my 100% suburban usage when I put LRR tires on my electric car... because they allowed me to coast significantly further. (See: http://ecomodder.com/forum/showthrea...eet-19126.html )
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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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