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Old 07-01-2008, 05:07 PM   #20 (permalink)
groar
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Join Date: Jun 2008
Location: Toulouse, France
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scenic - '01 renault scenic
90 day: 43.09 mpg (US)

megane - '97 renault megane classic
Diesel
90 day: 72.53 mpg (US)

dennisius - '06 Toyota Prius
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Quote:
Originally Posted by jamesqf View Post
So it depends: if the scooter replaces a car, it reduces CO2; if it replaces bike or feet, it increases CO2.
I can't find the original document from ADEME but here are the CO2 data from an extract of 2004's study found here :
. 50 cm3 : 50-80g/km
. 125 cm3 : 80-100g/km
. 400 cm3 : 115g/km
. 900 cm3 : 160g/km
The average for cars was 153g/km in 2004.
The prius is rated 104g/km.

Between 2000 and 2004 the HC&CO has been reduced by 6 from 2 wheelers but they are always more important than cars'. People on scooters are driving as rabbits and worse are modifying their scooters to have more power, so they come back to pollution level of 2000.

I found these documents with big tables for cars sold in France :(Hope the URL are working...)

Of course the most important is the way you drive, but in France where cars has lower CO2 emissions, scooters are far to be as efficient.

I do not know anybody owning a scooter or a 2-wheeler to be eco-friendly, they only want to save time.

Denis.
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Earth and health are priceless, so are kilotank and AT-PZEV
Best Mégane tank: 1268.9mi @ 77.847 MPG(US)
2008/06-2011/10 saving:
  • 5725.5 kg CO2 (5342.6+382.9)
  • Diesel / Money: 42.17% = 2446.25€ = 3357.26$


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