when going to Northern Quebec , we go through Tadoussac which has a Ferry , the weather is usually - 50 in the winter or lower , if your truck's or semi or car motor is shut , it may not restart and then you are in serious trouble , you leave everything running , even when refueling at a gas station -and you plug it in ---- the people who live in these areas are just the best , if you need help , they will stop and take care of you -