not at all. filled up before we left Grand forks, drove less than an hour to the accident site. according to "zoom-zoom's" readout, we had 600+ km left on the tank. I just shut the car off when we hit the 'all-stop' and the wife reached over and started it when she got cold. based on the readout, and the fact that I only ran the car for 10 m,inutes per 1/2 hour, we coul've stayed toasty for 400+ hours... without touching the emergency kit. or our bags... of clothes.
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