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Old 06-08-2012, 09:04 PM   #181 (permalink)
RobertSmalls
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Location: Buffalo, NY, USA
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Prius C - '12 Toyota Prius C
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Quote:
Originally Posted by MetroMPG View Post
EDIT: I have to wonder if there isn't some other reason that Honda did this, since it's not well thought out from a safety or efficiency standpoint. It almost seems like they needed to see a 12v load on cold starts for some other reason and just said, "hey, why don't we use the rear defroster on a timer for our load?"
Oho, that is crafty! The emissions regulations require lighting off the cat within a certain amount of time, which is hard to do when you're sipping fuel so slowly. The regulations ought to require you to light off the cat before a certain cumulative emissions threshold is reached, which would put gas misers at an advantage. It would also allow Honda to enable auto stop at lower temperatures.

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