Is my car’s MPG reading correct?
Can you tell me if the average fuel consumption figure displayed by my car's on-board computer is correct? I’ve read a lot of reports that claim official fuel consumption figures not matching up to real driving experience. Is my car’s on-board computer correct, or is this misleading too?
Asked on 8 September 2013 by Matt
Answered by
Honest John
The dash meter tends to enhance the true fuel economy by 5 - 10 per cent. Brim to brim calculations are more accurate, but to be totally correct you'll need to account for correction of the odometer which, typically, will over-read by 2 - 6 per cent.
www.honestjohn.co.uk/realmpg tells you what real drivers are achieving in real cars on real roads, but mostly on the basis of their dash meters.
www.honestjohn.co.uk/realmpg tells you what real drivers are achieving in real cars on real roads, but mostly on the basis of their dash meters.
Tags:
fuel economy
Real MPG enables you to register the fuel economy you are actually getting against your make and model of car, its engine and type of transmission.
Every time you enter an average consumption figure against your car, the overall average automatically adjusts to reflect it.
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