On the highway, there is white smoke from engine hood, stopped the car on the highway ramp and could not start the engine again, towed the car to my house and park on the drive way. I found it run out of coolant, I filled distilled water to trouble shooting and figured out the upper radiator hose was broken, replace upper radiator hose and refilled the distilled water, and I found the upper radiator hose is good but the leaking is from engine, I doubt it is the head gasket issue and can not seal. it maybe the high temperature damaged the engine parts after the coolant was leak out on highway, I don't know exact issue is, I was told it will cost at least 2k to fix the head gasket or 4-5k to replace the engine, the car has 95k miles.

Any suggestions.

Thanks,