Last night i did not get on the highway until after 9:30pm and thought it would be a good opportunity to see the difference in economy between driving at 80km/h instead of the posted 100km/h. I also set the parameter of not depressing the throttle any further that would be required on flat road when hitting a hill. This led to the Hi Lux slowing down on the hills. my average speed at the end was 70km/h.

As for the results, i was shocked to find my average 8.4LHK. That is down from 12.6 at driving at a constant 100km/h. That was a saving of $5.80 over a round trip. Now I was fortunate last night on the whole drive home to not have any one behind me and Iron Maiden in the stereo to keep me company as the trips was considerably longer.