As the title specifies, my windows are always fogging up during the nights. Especially during this rainy season in the Bay Area and it's making it very difficult to see during the night. Bringing in the heater while driving seems to provoke the fogging even further. Any suggestions on how to rid my interior side of the windows from fogging up? Any products? Or ways on ridding it? Btw, I have a '92 CX Hatchback with Vinyl interior panels and seats, if that even makes a difference, since I heard that moisture on vinyl will eventually cause fogging... If it's true, then I'd like to know ways to keep that from happening. Thanks.

 

Try washing your windows very well with windex with amonia? The one that really gets ride of all the residue from oils and what not, just dont use it on tinted windows! You have to use the regular stuff for that or it will eat away the tint.

Also instead of the heater, use COLD air instead, should take care of it no proplem that way, but having a clean window will help more so.

 

I'm assuming you don't have A/C, which works well to defog.

You can use one of the commercially available anti-fog products that are applied to the glass (search Google), or you can try making your own using the instructions found here: http://www.ehow.com/how_10042_make-own-anti.html

I have no experience with the DIY variety, but the commercial products seem to work decently.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fms1day &raquo;</TD></TR><TR><TD CLASS="quote">As the title specifies, my windows are always fogging up during the nights. Especially during this rainy season in the Bay Area and it's making it very difficult to see during the night. Bringing in the heater while driving seems to provoke the fogging even further. Any suggestions on how to rid my interior side of the windows from fogging up? Any products? Or ways on ridding it? Btw, I have a '92 CX Hatchback with Vinyl interior panels and seats, if that even makes a difference, since I heard that moisture on vinyl will eventually cause fogging... If it's true, then I'd like to know ways to keep that from happening. Thanks.</TD></TR></TABLE>

Heat will always get rid of fog or frost, it just takes a bit of time. As soon as you turn it on it might temporarly make it worse but it will make it better. If you have a/c use it in conjunction with the heat. That is the best solution. There are so called "anti fog" products out there but I don't know effective they are.

Vinyl will cause fogging. Especially in newer cars. This is a different kind of "fog". It's actually off gasing, or relases of gases in the plastic, of VOCs (Volotile Organic Compounds).This is actually the "new car smell", it is also why you house will stink after you put in new carpets. Its actually mildly carcenogenic but you have to be sniffing a lot of the stuff for a long time. You may notice that if you armor-all the **** out of your car and let it sit in the sun a residue will build up on the inside of the windshield. Usually only visible at night. That is vinyl fog. That's why it is also important to clean the inside of your windows periodically. As cars get older most of the gases have escaped and it is no longer a problem.

 

I've tried that fog-x stuff rain-x makes
I'm going to try that ammonia thing

 

I use a bar of dial and lather it up then wipe the soapy resdiue all over the inside of your windows. let it dry and go and buff it out with a clean rag. has always worked for me. I use it on my snowboarding goggles. usually works like a charm.

 

I just use the a/c. The dial trick is awesome as well.

 

I carry a squeege, Just have a 2x4 in square to look out of...works fine!

 

The soap thing works or you can also use shaving cream.... same concept. I live just outside the bay aera, same car, same interior, same problems. I just leave my driver side window cracked while i drive and deal with the little water that gets in. The big problem is the water that builds up in the hatch aera when it rains alot. Just a puddle of water in your spare tire well that when it gets hot, tries to evaporate and the only thing stopping it is our windows.

Best thing to do is take a drill and put a few holes in your spare tire well to let the water drain out thus taking it off your windows.

Oh, and its cold air that takes the fog off the windows, hot air takes off the frost in the winters... which around her seems like its never going to end.

 

Get rid of all your windows and never have to worry about it

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by old man neri &raquo;</TD></TR><TR><TD CLASS="quote">
Vinyl will cause fogging. Especially in newer cars. This is a different kind of "fog". It's actually off gasing, or relases of gases in the plastic, of VOCs (Volotile Organic Compounds).This is actually the "new car smell", it is also why you house will stink after you put in new carpets. Its actually mildly carcenogenic but you have to be sniffing a lot of the stuff for a long time. You may notice that if you armor-all the **** out of your car and let it sit in the sun a residue will build up on the inside of the windshield. Usually only visible at night. That is vinyl fog. That's why it is also important to clean the inside of your windows periodically. As cars get older most of the gases have escaped and it is no longer a problem. </TD></TR></TABLE>

Too bad my 14 year old car doesn't seem to be losing its "gases" from the vinyl.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nocturnaldragon &raquo;</TD></TR><TR><TD CLASS="quote">Try washing your windows very well with windex with amonia? </TD></TR></TABLE>

I've heard of that, and will probably be trying that soon.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hellshock2182 &raquo;</TD></TR><TR><TD CLASS="quote">I use a bar of dial and lather it up then wipe the soapy resdiue all over the inside of your windows. let it dry and go and buff it out with a clean rag. has always worked for me. I use it on my snowboarding goggles. usually works like a charm. </TD></TR></TABLE>

Wow. Never knew of this. I'll have to try this one as well <TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TsukubaDreams &raquo;</TD></TR><TR><TD CLASS="quote">The soap thing works or you can also use shaving cream.... same concept. I live just outside the bay aera, same car, same interior, same problems. I just leave my driver side window cracked while i drive and deal with the little water that gets in. The big problem is the water that builds up in the hatch aera when it rains alot. Just a puddle of water in your spare tire well that when it gets hot, tries to evaporate and the only thing stopping it is our windows.

Best thing to do is take a drill and put a few holes in your spare tire well to let the water drain out thus taking it off your windows.

Oh, and its cold air that takes the fog off the windows, hot air takes off the frost in the winters... which around her seems like its never going to end.</TD></TR></TABLE>

I crack the window as well, since i have some aftermarket visors to protect me from the rain. However, I don't have A/C for the quick fix... and when it's really cold, I can't really imagine using cold air but I guess to be able to see, i'll have to give in to the chill.

BTW. Is it moisture in the car that evaporates, the cause of this interior fogging? Since it has no where fast enough to get out?

 

also getting the window deflector and having the window just a little open will help. The dial thing also helps.

Dave

 

you most likely have a leak. The same thing happened to me. I also drive a cx hatch back (1992). My problem was that the heater core had a leak and the water in my carpet caused the fog. Check it out. That might be your problem. The vinyl seats will not cause fog. I know from expierience. You have a leak or a window that doents close right or maybe the hatch doesnt close right. But the fog is due to water somewhere inside your car.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92redhatch &raquo;</TD></TR><TR><TD CLASS="quote">you most likely have a leak. The same thing happened to me. I also drive a cx hatch back (1992). My problem was that the heater core had a leak and the water in my carpet caused the fog. Check it out. That might be your problem. The vinyl seats will not cause fog. I know from expierience. You have a leak or a window that doents close right or maybe the hatch doesnt close right. But the fog is due to water somewhere inside your car.</TD></TR></TABLE>

Thanks Once the rain stops around here, I'll have a look around.

 

i get it pretty badly when i have a couple friends in the car. i just crack the windows a bit or blast the a/c and it gets rid of that fog real fast. dont use rain-x on the interior windows, it will actully make things worse...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fms1day &raquo;</TD></TR><TR><TD CLASS="quote">

BTW. Is it moisture in the car that evaporates, the cause of this interior fogging? Since it has no where fast enough to get out?</TD></TR></TABLE>

Well if you must know the science behind it,

When it rains the humidity is 100%. Meaning that the air at the outside temperature can not hold anymore water, thus it falling out of the air or it raining. Water will also condense on any surface it can. This is a function of the dew point. If a surface is at the dew point or less water will condense on it. Just like dew forming on an icy cold beer in the summer. Anyways, when you get in your car you are raising the temperature inside the car just by the fact you are inside. You also add more moisture inside the car as you breath and as moist air enters from the outside. So inside the car the humidity also goes up to 100% but it is at a higher temperature. How is this a problem? Well seeing as your windshield is a good conductor of heat it quickly cools to about the termperature of of the outside air rushing past it, it is now at a temperature below the dew point of the inside air. Condensation will now form. How do you aleviate this? Well you can turn on the hot air on the windshield. If it is hotter than the dew point of the inside air then dew won't form anymore. Also, heating of the outside air lowers the humidity level in that hot air so it can absorb more moisture and this "burn" the fog off the winshield. Turning on the a/c with the heat lowers the humidity level in that hot air even more making it more effective at burning the fog off the window. It will also help to lower the humidity inside. Opening the window sometimes works because it makes the air the same humidity and temperature as the outside. For shouldn't form but sometimes even a breathe on the windsheild will do it.

Sorry, I couldn't make myself clearer.

 

One thing I know that could be your problem. If you use vinyl spray for your dash, some of it can splash up onto your window and that **** will cause your windows to fog up. You have to get down to the bottom of the window with some windex, It can be a bitch to clean.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by KoLRaNcH &raquo;</TD></TR><TR><TD CLASS="quote">One thing I know that could be your problem. If you use vinyl spray for your dash, some of it can splash up onto your window and that **** will cause your windows to fog up. You have to get down to the bottom of the window with some windex, It can be a bitch to clean. </TD></TR></TABLE>

Yes, even the stuff you put on your dash will fume up onto the windshield. But it is best to spray on the cloth outside the car and then wipe the dash as oppose to spraying the dash directly and getting overspray.

Cheers.

 

Thanks for all the advices and the science portion.

 

Rain X anti-fog

 

My friend tried that, and the next day when it rained, it fogged up on him.

 

Rain X Anti Fog
WORKS!!!

Try It~Make sure u follow the directions n there shouldnt b a problem