Join Date: Aug 2005
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I've always assumed it was because the trip computer works things out in km/l, then converts the figure to MPG if the car's configured for the UK market.
Having said that.... I've looked further into it, and 47.8 MPG translates to 16.92 km/l, 48.7 MPG is 17.24 km/l - not very rounded figures, either! Calculating it using US gallons isn't any better.
So the bottom line is, I haven't a clue!
At least you know there's nothing wrong with your trip computer, I suppose....
Currently in dkmulvey's garage:
'02 Renault Laguna II 1.9dCi Dynamique