Mine varies from being ahead and behind my on board measurement. Have you tried switching both to MPG to see what the difference is in that mode - I think it only goes to .1 in l/km ?
Its worth having both AVG and MPG on together though to keep the latter ahead of the former.
EDIT if the MPG figure is based on air ratio, does it not alter when you tell it you are using a Diesel car ?
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Last edited by Arragonis; 09-04-2010 at 01:24 PM..
Reason: Diesel ?
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