Comment by rssoconnor

Not that I'm disagreeing with your main point, but I will say that Toyota's hybrid design is one of the best ICE engines out there. The transmission is replaced with planetary gears and the starter and alternators are replaced with a pair of motors to control the throttle and continuously variable transmission, making it one of the gentlest engine designs out there.

But yes, there is engine oil to be replaced and whatnot.

And also, to your point, my experience with my PHEV is my short range driving is electric, but it turns out most of my miles is consumed by annual long range trips. If I commuted to work, things would tip more in favour of EV driving. All to say how much EV you get out of your PHEV will depend highly on the type of driving one does.