Last weekend while driving the top radiator hose snapped. Apparently, the temp gauge was not working properly and didn't alert me to the overheating. I kept driving until I noticed smoke coming from the engine and the engine misfiring. When I opened the hood it had sprayed all over the engine and engine bay. I towed the car home and noticed a white snotty looking substance at the top of the radiator hose and white spots all over the engine from the spray. I have attached a few pics of the substance. The next day I started the engine for a few seconds and it seemed to run smoothly. There is no milky residue on the dipstick, the top of the oil cap or in the overflow tank. Does this look like a blown head gasket to you or could it be something else?

 

Sorry to tell you this, what you're seeing is oil and coolant mix the classic "milkshake". You likely have blown head gaskets drain the engine oil to confirm. You won't see this in the dipstick after the car has been sitting as coolant and oil naturally separate over time.

 

Yup, the magic milkshake. Like the magic smoke, don't drink this one either. That is super awful to see, I'm sorry. Overheating this bad can warp the engine block or oil starvation could cause all sorts of damage. It's entirely possible the engine is a complete writeoff. On the plus side, there isn't enough water in the combustion chamber to cause it to hydrolock so at least we haven't had a piston exiting the chat yet.

Good luck man.

 

bummer to see!
if i were you i would replace the upper hose, refill the coolant, check the plugs for fouling, clean up the engine bay, and fire it up again! if the engine is already toast there is no harm in trying other than the expense and labor.