I saw your efficiency ranking today, 7.8 miles/kWh. Yowsers, how do you get your eff up so high? I'm lucky to hit 5 miles/kWh..... IF the weather is warm enough and IF there aren't any hills on my route and IF my speed is 25~28 mph and IF I hit all the signals lucky.
Some Japanese driver hit over 10 miles/kWh today.
Yes, I frequently get very good efficiency on the way to work, since I'm going downhill. I've got more than 7 mpkwh on several days on the Leaf eff. meter. Carwings ofcource shows even more. Since Carwings uploads data when I start the car, in the evenings usually it just shows my commue to work numbers, which will be high. I've been in top ten efficiency on some days because of this.
But what goes down, must come back up. So, on the way back, I get much less. The round trip usually gets me an avg of 3.9 m/kwh. This is what it Leaf shows for the full day (carwings actually shows about 4.6).
My daily commute is all urban with roads being 35 & 40 mph limits. This includes an elevation change of some 900 ft. I get between 82 and 110 miles per charge (using the 3.4 to 4.6 miles/kwh efficiency figures shown by Leaf) depending on things like use of pre-heat, use of climate control, temperature and how I drive.