When it's cold outside, I know that our Prius ICE runs more than at other times. I'm not sure, however, how much of that is to generate heat for the passenger cabin or because it takes longer for the engine to warm up (and it has to be warm to do the nifty turn-off-and-on-in-an-instant trick).
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Date: 2010-12-08 04:09 pm (UTC)