I thought I was going to break my miles per tank record.

You noticed, charger at both ends? There may have been a engine warm-up sequence caused by the programming. That’s very minor and short lived, 2 min. maybe.

 

Is the Prime warmup sequence shorter than the PiP? I can't get mine to go under about 5 minutes. Maybe 4 if it's really warm out.

 

???? It’s possible, temp difference between Ca and Nebraska. I do several things to dissuade the ICE.
Accelerate slowly, drive in Eco/ev, Keep, Ac off. Condition car before drive off. I haven’t done it long enough to notice engine on as usually I’m looking at driving range left.

 

pip can charge a couple miles during warm up, and assist motivation.

i must say, this engine warm up due to software programming is a concern.

 

Sounds like @Andyprius1 is talking about EV Auto mode and not the stricter EV mode in the Prime

 

Read: Charger at both ends.

 

gotcha, you charged it, drove in ev, at some point the engine ran, you parked it, charged it, wash, rinse, rear.
thusly, 119mpg whatever.