Allan Streib wrote:
> Here's something I never understood -- if the thermostat is operating
> properly, when the engine is cold no coolant is flowing to the radiator.
> So what difference does it make if there's a piece of cardboard over it?

I guess the thermostat would simply cycle less.

After nine winters in northern Maine, where temperatures were frequently
-20�F or colder, I can say that with a working thermostat, my
temperature gauge, after warm up, stayed where it does in the summer and
I had plenty of cabin heat.

Mike