The Gen 3 Prii have been taking a lot of heat lately due to HG failure, as well as other, and I quote, "turd" generation issues. I found this on a forum I moderate on, that (I hope not) may be on it's last legs like Hubble. https://fordcmaxhybridforum.com/topic/7997-cmax-energi-hvb-battery-replaced-under-warranty/?do=findComment&comment=75322 My take is that, the larger the area inside the curve, the larger operating range the engine can be run AND be fuel efficient....
Sorry about that. When the C-MAX Energi forum (similar name just replace hybrid with Energi) went down it was a big surprise even to the moderator (fotomoto). I tested the link and it did work (I'm on TapaTalk on my cell phone. I will try to open on a computer to verify. It has been acting like you note. I thought I'd try to grab some of the wealth of analytical prowess from user Prius 3 golfer over there before the site surprises us and suddenly goes down for good...
