2022 Bolt EUV Premier
Probably wasting a little bit. But if it's cold, the ICE starts even in EV mode. It only runs at a fast idle, enough to generate some heat for the cabin. I generally saw MPG in the 150 range while just getting some heat from it. Unless you have a need to save some battery power for using EV mode later in the drive, the cars handle the control pretty well on their own.