New engine with about 100 miles on it and it is loosing coolant at an extreme rate.
I took the car for a drive 3-5 miles, got on it a time or two, and by the time I get back home it's out of water. There's no water in the oil and no visible leak other than the overflow tank overflowing. My best guess is that all of the water is getting pushed into the overflow tank until there is nothing left in the engine.
Head gasket leak? Cracked head???
Video of the overflow hose