Best info on when ICE runs when battery available?
When I first heard about the PacHy, it seemed to fill an empty space in the marketplace: a not-small car that could be powered mostly on electricity.
But now that I am seriously looking at getting one, the actual mechanics of not using gas seems very vague. When I had a Volt, they were clear when gas would be used if battery power was available:  when it is "too cold",  after 6 weeks of not using the ICE to maintain the engine, and  if the gas in the tank hasn't been used in a year. #1 was the contention point (although someone found that pre-heating the car for 10 minutes twice would minimize the gas usage when it was too cold out).
With the PacHy, the information seems limited. Obviously it will use the ICE if there is no battery power left. I've heard it comes on when it is cold -- but how cold? Some people say that when it is cold, the ICE only comes on if the heater is turned on -- is that really true? If so, can pre-heating the car be used?
It sounds like the "refresh mode" in the PacHy combines #2/#3 for the Volt. Is there data about how often the "lubrication" mode occurs, and how much gas it typically uses? Is there data about how often the "stale gas" refresh mode occurs (the manual says it stays that way until the "low gas" warning comes on, or new gas is added to the tank)?
I have also read that going over about 80MPH will turn on the ICE, and that accelerating too hard will turn on the ICE.