My question is the same as the title.

I find that sometime my car just can not remove the moisture/fog in winter even if I am using the hottest temperature and fastest fan speed blowing on the window only. When the car is stopping for a light, it even worst. I have to wipe the window with my hand and look stupid.

I am wondering if that happen to you guys either? It happen only sometimes, that is why I don't get the reason for that. It happened again last week when there was a heavy rain with low temperature outside. It is not cold like winter, but it also happen, and I see other cars on the street do not have the same problem as I do.

How do you guys solve this?

 

Try turning on the air conditioning. When it is running the air has less moisture in it so less likely to cause fog ups. Fog on windows caused by temperature difference between inside and outside. It is quite annoying when you don't want t he cool air but it does work for me.

 

The A/C usually clears that kind of thing up. You could always put a can of Damp-RID in the car to see if you can just absorb the moisture up. If it returns you might have a bad seal somewhere.

 

Has anyone tried Fog-X or the like? I haven't...but I've thought about it, just don't know if it works. Cheers.

 

I know this sounds stupid... but are you using regular air or defrost?

Using AC in the summer will dry out the inside but might actually fog the OUTSIDE of the windows. Defrost with high temp can actually blow warm dry air into the cabin.

 

I live in Edmonton, Canada. So you can trust me when I say this, A/C with heat on will heat up the car while sucking up all the moisture. I had the same problem as you and that's how I solved it. Run the A/C for a little while each time you drive.

Good point about the Fog X though, I looked at it in the store the other day, but didn't buy it. Anyone ever tried it?

PS. In the summer, don't use heat, just blow cold air the windshield setting and you will be fine. Or else open the side windows a crack.

 

Ditto (I'm in Calgary). Yes the RA fogs up much more than any other car I've owned, and I've never had to run the AC to defog in the rain in any of my other vehicles.

In the RA, during spring/summer, selectively turning on the AC works for me -- once the windows are defogged, I turn the fan off as running it without the AC just fogs them up faster I find. In the winter, I'll run the AC with defrost until the windows are clear then just turn off the defrost but leave the fan running and selectively turn on the AC if it fogs up again (rare).

 

BTW, has anyone noticed that on a rainy damp day, with no AC on, if you're on the verge of fogging up and you go WOT, the cabin will instantly fog up? Has happened to me a lot.

 

Haven't had a chance to see it yet, only had my Ralliart for a few weeks. It did rain, but I didn't get that much fog going on. Do all Ralliart models have the climate control? I have the one with the fancy package, and it seems to fog up less than my previous Lancer GT without the climate control.

On another note, my internet research seems to indicate that Rain-X is a good product, but Fog-X works for some people while others can't tell the difference. So maybe you should just go ahead and try it, and let us know if it works.

 

I tried fog-x, didn't really work. Nether did the stand alone rain-x.

The rain-x washer fluid works wonders though.

 

Totally! Plus, I pour a little onto a microfiber towel and wipe down my rear windshield - makes a night and day difference in the rain.

 

I usually just wax my rear wind shield (not the front cause that crap cakes up the wipers).

 

I swear by Rain-X, I've used it on all my cars for years. And end up using my wipers for one swipe (just to clear the rain before moving the car). At any speed above 15-20 mph the rain is no longer an issue. I put it on all my car windows. I'm in L.A. but we do get the occasional downpour and thunderstorms in the desert and local mountains are very common. Cheers.

 

the AC kicks on when you're in the defrost mode. open the rear windows a crack to let that moisture out and for sure don't use the recirc mode.

 

Additionally, service manual says that when it's fogging up, you may also want to check your cabin filter as this may be clogged.