Quote:
Originally Posted by teoman
The warm air vaporizes the fuel better. And with a warmer mix you get faster combustion.
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Very true. And, as California98Civic says, you also have reduced pumping losses with a conventional automatic or manual. This will not be the case with a Subaru CVT, however, as reduced power will just cause it to rev higher. I could see this as being counterproductive.
Only way to know for sure is to test. I'd think running one in winter, at least, would be a good idea.