It took me awhile to understand how the cold affects the range of the car. Turns out that the overall battery capacity drops with the cold (in addition to the extra load of heating the occupants).
http://batteryuniversity.com/learn/article/discharging_at_high_and_low_temperatures
I was mistaken about the MPGe calculation. Was led to that conclusion from the OnStar app.
Before charging: Lifetime: 142 MPGe, Since Full Charge: 169 MPGe
After charging: Lifetime: 134 MPGe
Any ideas why this happens consistently? The reduction in MPGe is greater when charging from a higher...
Have driven the Spark just over a thousand miles (so, fairly new to the 'experience').
Like a lot of the people on here, I have been playing the game. That one where you watch to see how well you are driving based on the MPGe scores. (Since I have not paid for the electricity, it shouldn't...