Aren't those clouds water vapor?
Yeah, Stig! Those clouds ARE water vapor! We got 'em here and they ARE LEAKING!!
What coolant do I use? What came in the machine! From 2013...I know! Everyone says cflush and change. Been saying that since they started using ethylene glycol. I had a Dodge Aires K car new in 82 needed a water pump in 87 or so. Pulled the pump and the cast iron block was pristine, no rust and the coolant bright green. Later at 150000 miles had a coolant leak from head gasket. With head removal, passages in the head and block absolutely clean! Each time I reused the coolant and added to make up for losses during repair. Sold the car at 277000 miles with second water pump and most of the original coolant.