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Old 02-13-2010, 07:02 AM   #4 (permalink)
Buxton
EcoModding Lurker
 
Join Date: Feb 2010
Location: England
Posts: 7

Cougar - '98 Ford Cougar
90 day: 28.3 mpg (US)
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Quote:
Originally Posted by nj1266 View Post
How did you do your calculations? Did you you do them manually or rely on SGII? I had my SGII telling me that I was getting 34.xx mpg to the tank on my S2000, but when I filled up from the same gas station/pump and manually calculated the mpg it was 30.27 mpg. Ofcourse, this was before I calibrated the SGII. Now that I have it calibrated, I am hoping that my manually calculated mpg matchs the SGII tank mpg.
My readout (car readout) says i'm doing 30.8 mpg. I don't have a scanguage.

I worked it out as:

£22.55 spent

£1.08.9 per litre

20.7070707 litres

20.7 litres / 4.54609188 (UK imperial gallon)

= 4.55491689 gallons

200 miles / 4.5 gallons = 44.4444444 mpg



Working it out in US gallons appears to be a bit worse though - only 36/7 mpg. Oh well, either way it's a definite improvement.

Last edited by Buxton; 02-13-2010 at 07:11 AM..
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