How cold is "too cold to walk home"?
Current temperature at my location -42C, which is warmer than the last couple of nights, -46C.
Is it below freezing? Do you let the fuel level go below 1/4 tank? Could fuel line icing be an issue, if so try adding a cup of methyl hydrate or fuel line antifreeze to your fuel, and try to keep the fuel level near full during the cold weather, it leaves less room in the tank for condensation to form.
Ron Thompson, VE8RT
Yellowknife, NT, Canada
"Who are are these that fly as a cloud, and as doves to their window?" Is 60:8