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MPG factors.................

My 2013 passion averages 36/37MPG running 91/93 octane winter blend gasoline. Summer blend averages 40/42 MPG. Cold
weather will decrease MPG. Using cheap mid-range gas will decreaseMPG. High percentage of ethonal in gas will decrease MPG.
I live in western NC mountains,so everything is up hill/down hill. And I drive the little car,like I just stole it!!.................
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