Quote:
Originally Posted by dcb
There is a seperate thermos type resivoir on the prius, and when the car is shut off they pump it full of hot coolant. So when the car is restarted they put the hot coolant back in to the main system and "preheat" the engine a bit without wasting hardly any energy to do so.
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I see what you mean.. Maybe use a 2nd reserve tank (junk yard hunt) with a small electric pump that can pull a gallon or so of coolant out of the system, and have it heated by a small electric coil. Start the engine, reverse the pump, and back into the system it goes. Though it would have to be manually controlled.