Well, I feel a little stupid but also excited to have figured out that my mpg can be found in different ways. I've been looking at the ongoing readout on the empower screen option (finally hit 41mpg today!), but today I checked the trip 2 readout, which I had reset at my last (2nd!) gas-up. (The pump shut off early, at 3/4 tank for some reason, which is actually what I wanted and what I did at my first fill-up, preferring not to carry the extra fuel weight of a full tank.) Anyway...the trip 2 says I'm getting 43.7 mpg! Yay!
Another dumb question, then: what is the empower mpg reading from? Some accumulation but what accumulation? Is that a lifetime reading?
From the last time you reset it with pushing down the OK button for five seconds or when it goes to zero. I always reset it when I reset trip gauge.