Well I can tell ya, living in a tent at -50, we each had 2 burner coleman stoves with 2 tanks, one burning, one refilled and ready to go. At 1 hour and 55 minutes you put the refilled tank very close to the side burner and heat the naphtha, otherwise on flame out, the second tank wouldn't light up. That's on top of a coleman lantern and an alladin blue flame heater going. Did we have tent eye..
Regular motor oil was stiff, like solid. I had a trailer tire that was completely deflated but didn't go down, that's how stiff the rubber was. And these weiners whine at -15.