Yeah, I noticed he was puffin a bit of smoke- thinking some better glow plugs, and no load applied it takes a bit to warmnup. Also looking at the tiny radiator, but I guess if it is in use in really cold weather and It's not like any huge load is applied the no worries.
Just joking around with as warm as the 6.x can get it could act like a zamboni that squeege's scrapes the ice, melts the chips and bit of top layer to refreeze smooth and even the ice out.