I was thinking perhaps it's ~30% ammonia near-saturated solution in water which is easier to handle. But there's no indication in video, it would need to be deh

I was thinking perhaps it's ~30% ammonia near-saturated solution in water which is easier to handle. But there's no indication in video, it would need to be dehydrated before burning, lowering efficiency. Also it means getting from over 12 MJ/l down to 4. Compared to gasoline 34 MJ/l. Would need several hundred liters fuel tank to have comparable range.