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How can I use the air con in a way that won't reduce fuel economy?
I know that a/c reduces fuel economy, but what would achieve better fuel economy - to set a higher temperature and higher fan speed or to set a lower temperature and lower fan speed?
Asked on 9 July 2017 by DOMINIC ALLAN
Answered by
Honest John
It barely has any effect at all on fuel economy on a long run. Opening the windows creates so much drag that the car will then use more fuel than running with the a/c on. However, in stop start traffic it will increase fuel consumption more than opening the windows.
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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