Fogging up the Car

Does anyone have any ideas on how to keep the windows from fogging up so badly? I'm up for any suggestions and or ideas.

Rain-X sells an anti-fog treatment.

Heater core leaking? Do you smell coolant in the car?

Is the fog on the inside or outside? If its on the inside there is a good chance your heater core is bad (like woodie stated).

Sweet! My work is done here! I can now lay back and take credit for Johnny Mullet's excellent advice.

Sweet! My work is done here! I can now lay back and take credit for Johnny Mullet's excellent advice.

Me bad!, It's just that you have been posting in all of flashes threads and you and john have red-orange like cars as avatars, so I just put one and one together and and came up with three, thus..your name just automatically typed out..

But face it... you too were thinking heater core?:lol2:

Hmm.....Possible water leak also? (Non Coolant related). Have you checked for any wet/damp area's on the floor carpet? I fixed a 95 Buick Lesabre that fogged up often....The cause was a slow leak in the DS windshield area. Could also be a door seal leak?