Gas line freezing  was a big problem in the old days with carbs
so we used to carry a can of alcohol with us in the winter time.
In the wilds of Northern Ontario you could be driving down the road
at - 40 deg F and have the engine stop for no apparent reason.
You grab your can of alcohol, jump out, pour it in the tank
and by the time you got back in the car the engine would
start right up. Maybe the answer then is to mix a bit of
alcohol in the fuel. Apparently the alcohol is attracted
directly to the water in the fuel. What are you guys from
up north seeing in the winter time with EFI cars?

Paul Lamar

Paul, they still sell the "heat" in little bottles at the gas stations,
but it is redundant, as it is the fuel already, I never have problems
even at 40 below.

Hans