Foggy windows

[WeeYari]

Originally Posted by JustPassinThru

The other way, is to turn the heat down - and put the Air Conditioning ON. Yup...Air Conditioning dries the air.

Defrost setting is kicking in the A/C compressor. That is why all the F/E fanatics go to great lengths to avoid using defrost.

[JustPassinThru]

Originally Posted by WeeYari

Defrost setting is kicking in the A/C compressor. That is why all the F/E fanatics go to great lengths to avoid using defrost.

I don't know this for a fact; but I believe that the A/C compressor isn't ALWAYS on with Defrost. Seems to vary according to other, unknown factors - temperature, maybe; or engine temperature.

But you're right, it does generally go on. I don't like it for just that reason, fuel economy; but truth is it DOES help a LOT with window fogging.

Older Chryslers used to turn off the A/C compressor if you pulled out the DEFROST button after pressing it in, on those pushbutton heater controls they had. Worked that way even after they removed the tang that let you easily pull the button back. In that little way, Chrysler was ahead of Toyota...