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Old 07-09-2009, 01:38 PM   #27
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Join Date: Sep 2003
Location: Chicago, IL
Posts: 3,138
My Ride: 2001 TiAg 330i
Originally Posted by paraklas View Post
I will give it a try..

470km = 55 Liters of RON 98 gas

100km distance comes to 11.70 Liters (Real measurements)

My OBC shows: 9.7 L/100

Therefore my correction factor should be 1 - [(9.7-11.7)/11.7] = 1.17

Done in US friendly units:
1 liters = 0.264172052 US gallons
Therefore: 11.70L = 3 US Gallons / 62.5 miles
Comes to 20.8mpg average (aggressive driving + ac always on)
Please report back to see how accurate this method is. I wonder if the correction factor is based on driving style....????
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