My self I like the Arctic Diesel that Mills Fleet Farm sells as it is good down to -30 below zero and it has a Centane of 45. When I use Arctic diesel in the wintertime I don’t lose as much mpg when compared to the normal winter blend of 70% number 2 and 30% number 1 fuel that most places sell in my area.

The sad thing is that Arctic Diesel is no longer available for use in bio diesel blends and the State of Minnesota requires diesel fuel to contain 2% Bio. FYI, Arctic Diesel is made at the Flint Hills Refinery in MN.
By chance has anyone used the Gold Diesel Plus? They claim it has a Centane rating between 47and 50 and if so that should give a boost to your fuel mileage.