Glass Cleaner that doesn`t fog?

[paul34]

AFAIK those "anti-fog" nonsense products from the eyeglass stores are nothing more than watered down ISA, which is basically what you`re using in a quality glass cleaner like Stoner`s, anyway.

[STG]

You silly Americans and your inexperience in the cold!



Just turn on your A/C, and you`re set. On Canadian cars, whenever you turn on the front windshield defroster, the A/C turns on automatically-- whether you`re blasting cold air, or hot, the A/C will draw out all the moisture and fog.



Good luck!

There is no such thing as a Canadian car. Bacon, yes. Car, no. You silly Canadian!

[Setec Astronomy]

Actually, most cars everywhere turn the AC on with defroster. The reason the A/C turns on isn`t that it draws out moisture, its that it keeps the A/C system lubricated so it lasts longer (There is oil mixed with the freon that runs throughout the whole system). The reason it helps with fog is that (generally speaking anyway) the system is set so that when the defrost is on, you are drawing in fresh air from outstide. Not recirculating the moist air that is present within the cabin.

:nixweiss In every car I`ve ever been in, you have to take special measures to NOT bring in fresh air from outside. There are plenty of reasons for this, mostly to ensure that any exhaust products that find their way in are pushed out (or kept from coming in in the first place). The primary reason the A/C comes on in most cars when Defrost/Defog is selected is to DEFOG THE WINDOWS. Another time you use Defog is when it`s raining, and the "fresh" air from outside is pretty, um..DAMP. The best way to defog something is with dry air. It was always a nice benefit to circulate the compressor oil in the winter, but that was never the primary reason to turn the compressor on with Defog/Defrost. If that was the reason, today`s cars could easily do that on some sort of random/programmed basis without any need for driver intervention.