m0ebius604, hope you don't mind my summarizing your post in the above bullet points, rather than a direct quote. Thanks for the points you brought up....this raises possible negative conditions for your vehicle.
- forcing Pure EV mode may defeat the maintenance routines and if you neglect to manage your engine health yourself might cause damage.
- Limited cabin heat.
- Limited power should an evasive driving situation require more.
- The range is so limited already I would imaging forcing EV mode wouldnt be super useful?
Agreed on the first one. Presumably you'd want to briefly run the engine in ICE mode a few times per year just to keep the valves lubricated, etc. There are plenty of project cars that sit in garages for a year or two without being run with few ill effects, so running the ICE on a Pacifica every 4-6 months presumably would be adequate.
Yes, you'd have to preheat the cabin while plugged in or suffer extremely limited range. I live in a temperate area so this isn't a big concern.
For me, limited power isn't an issue. I drive like a...well, I drive like a minivan owner. So the only time my van activates the ICE is when the Adaptive Cruise Control lurches forward and forces it to come on.
I've got charging on both sides of my normal drives, so EV miles are 98% of my routine driving. If I get off routine, it's easy enough to stop by a gas station and add some fuel in my urban/suburban environment.
Can you think of any other (especially mechanical, because I'm no mechanic) risks to running in Turtle mode for an extended period?