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Old 08-09-2010, 11:47 PM   #6 (permalink)
dcb
needs more cowbell
 
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pimp mobile - '81 suzuki gs 250 t
90 day: 96.29 mpg (US)

schnitzel - '01 Volkswagen Golf TDI
90 day: 53.56 mpg (US)
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ideally you would put the car on a dynomometer and measure speed,consumption,torque and build a 3d map (lots of readings), a-la bsfc chart.

Its a lot more complicated than comparing gallons at refill.
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