How much extra fuel does the Micra burn running the A/C ? ENQUIRING MINDS WANT TO KNOW!
Just for kicks, I did a series of bi-directional averaged runs at 3 different speeds with the A/C on and off.
I set the fan on the 2nd speed and left it there for all runs, just toggling the A/C switch.
Here's what I saw:
The average fuel consumption increase with A/C on vs. A/C off was 0.3 L/100 km or 5.9%.
Here are the raw numbers...
Code:
speed AC N. S. avg L/100 km*
60 off 4 4.1 4.05
on 4.3 4.4 4.35
on 4.3 4.5 4.37
off 4.2 4.1 4.16
80 off 5 4.5 4.75
on 5.5 4.7 5.10
off 5 4.5 4.75
100 off 6.3 5.6 5.91
on 6.6 5.8 6.15
(* Some of the averages are affected by rounded conversions of initial
readings that were taken in MPG)