Water By Another Name

Greetings all. In my last post, bemoaning the state of my health [almost over the cold, thanks] I included a throwaway line about the movie I'd recently watched where some characters pee into their truck's radiator because they don't have any water. I asked whether this could really happen, not actually expecting anybody to give serious thought to researching this point. "Madarse", the friend of a friend, has considerately addressed it for me, though with attention to motorcycles, his transport of choice:

( Madarse's soliloquy )

( Motorcycle Man's response )