Most everybody around here in Minnesota has noticed that their gas mileage goes down noticeably in very cold weather.
Gasoline is consumed to produce energy. The more of it that is used to heat the air for combustion, the more that is consumed, since the energy used for propulsion should be the same either way. I suppose there might be some small effect too from moving the vehicle through denser air the colder it gets, and more people warming up their cars before driving.
LOL.
Minnysoter also elected Jesse Ventura, Dayton and Al Franken.
Got the feeling any “cold air density drag” is more than offset by “cold air O2 density aiding combustion”. Maybe someone has data showing it requires more gasoline to run an engine in the Artic than at the Equator, but that is unlikely.