I appear to have run out of water and oil on the same drive. Wife driving actually, but my bad for not checking fluids. Anyway, got oil into it and the pressure has climbed back and the clack is gone. I think I have that okay. The water was unbelievably low; and the temperature gauge quit working.

So, hopefully everything will be okay. Questions,

1) Just a temperature sending unit for the temperature gauge?
2) Could running super low on water cause the engine to get so hot it boils the oil out? I haven't had any oil level issues for a while now. I really don't believe that to be the case and am offering myself up for laughter fodder, but just wanted to ask.

Thanks. Feel free to call me stupid. I deserve it this time.