[Wissa]

Maybe someone has data showing it requires more gasoline to run an engine in the Artic than at the Equator, but that is unlikely.

I guess it's your choice on whether you want to do a simple google search or if you prefer to remain ignorant on this matter.

[X-spurt]

No, its your theory, show us the evidence of its validity.

Do you also think bullets are slower in the winter? They too have to overcome ambient temperature to generate chamber pressure to expell the round.