It’s not that you can’t use it, but that the cold cuts the range dramatically, and you can find yourself stranded despite the gauge saying everything is still OK. (Yes, I’ve found myself stranded a few times!)
Purpose made: a road-legal (not just off-road) Bad Boy. Well, two of them over the years. I prefer using them when possible because the diesel truck makes so much noise it’s harder to see wildlife/birds before they run away.
