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Originally Posted by drquine
Crisp fall is here and I'd thought that without defrosters, air conditioning, and watery roads I'd see improved mpg. I even thought that the cold air would expand more when heated in the engine and give a little extra mpg. Far from it. After making nearly 50 mpg on each tank, I barely made 48 on the last tank and this tank is a struggle to get above 44 mpg. I understand that the engine starts cold and that for emissions the first priority is to warm it up; the engine does not turn off at stops until it has some heat. Nevertheless, my average commute is 45 miles so there is plenty of time to warm up and then settle into good peformance. No such luck.
Any insights (besides checking my tire pressure which I'll do tonight)?
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Folks with garages would probably fare much better, heated garages even better but unfortunately my HCH will have to brave the great white north unprotected for the winter....even if the garage is 45F while outside is 32 or less may be beneficial...we just had 2" of snow and 32F here last saturday and it killed my mpg's, slowly getting back up to 47mpg. Sunday, the next day, it was 70F...yeesh new england weather....
