I checked my antifreeze and it was low! The bottel was empty. Is the the head gasket leaking?

 

That's possible
Have you pressurized the system to check for leaks?

 

No it is snowing or raining! I hate winter! At work I looked for leaks and found thr hose clamp is wet. Nothing around the motor. Oil is ok. Stinks.

 

Is it wet inside the cab? Heater core maybe?

 

No nothing. I filled it to the cold level. It took about one quart. It was just below the add level.
My 2005 F350 6.0 diesel pushed the antifreeze out of the bottle and it was all over plus the smell.
Next week I will do a pressure test at work.

 

Check for line leaks

 

If the above posts don't help you find the issue it could be a possible water pump failure. Remove the serpentine belt and turn the water pump my hand, if leaking you will see it come from the weep hole on bottom.