So this might be it for awhile, temperatures below freezing for the next week. Snow on the ground overnight. I know it's best to keep the tank full to keep out condensation, however for those of us out west with the California model we are not suppose to fill the tank above the filler neck, " So the fuel does not flow into the Evaporative Emission Control System". This leaves a couple of inches from the top of the tank. So what are the rest of you doing? Topping it off or stopping at the filler neck?