[susan3004]

Originally Posted by vivekiny2k

does rum or any other alcohol harm the rubber wiper blades? in addition, can it be used on a rain-x treated glass?

I am told alcohol prevents snow from sticking to the glass, hence wanting to experiment.

The duration for the wiper blades to harden up/crack by using alcohol would be nominally different from the rubber getting brittle over a period of time.
Issue of safety still remains paramount and we must evaluate as to our exposure to driving in blizzards.

[vivekiny2k]

Originally Posted by SS-Traveller

I was not conversant with Rain-x treatment. Just googled it. Have no idea what the constituent chemicals may be. Please check their literature and tell us if possible. I don't think rain-x is available in India (except perhaps in specialty garages stocking imported stuff).

from a forum. I know normally a rain-x coating lasts 2-6 months based on the usage and how it was applied in the first place. i am thinking alcohol will be bad for it, since it is also prepared with inflammable solvents (now that i realize, it smelt like alcohol).

From the MSDS on Rain X The Invisible Windshield Wiper...

Its active ingredients are Silicone Oils, Siloxanes and Silicones, di-Me, hydroxy-terminated. These chemicals form Si-O-Si bonds with the surface of the windshield and have Methyl-terminated hydrophobic tail group which repels water. So, it should only work on true glass that is silica based, as the bond will only form with the Si-OH groups that are on the surface of the glass.

G-Si-O-Si-O-CH2-CH2-CH3
L-Si-O-Si-O-CH2-CH2-CH3 ---> Water
A-Si-O-Si-O-CH2-CH2-CH3 ---> Water
S-Si-O-Si-O-CH2-CH2-CH3 ---> Water
S-Si-O-Si-O-CH2-CH2-CH3

[satish_tns]

Hi all... I have a swift vdi-abs. I have this problem on front and rear windshields everyday no matter what temperature is there outside the car. I work in night shift so i travel 30km everyday and while going, after crossing half the way, back windshild has its upper half full of fog ouside. If i slow down to less than 30kmph or stop in traffic, it goes from bad to worse. I am more than happy to clean it up using the wipers on the front glass, but i am too worried about the rear windshield. I tested all the options and modes on the ac and nothing worked for me. I end up lowering all 4 windows half the way donw and after 5 min it clears out. Note, i am in chennai and i go to office by 6pm and come back by 6am. I face this problem in not only rainy and cold days but on normal days too. I got an info that having the glass clean reduces the fogging on outside but just reduces as it meant and not stops. I am totally fed up with this issue :-(

[gavinimurthy]

Originally Posted by satish_tns

I end up lowering all 4 windows half the way donw and after 5 min it clears out.

No need to lower half way down. Even a few centi meters gap will do the same. Try it out next time.

Murthy

[blackfire_9]

I don't know if it's just me or if it actually works, but I have been using lens cleaner solution in my car. I mix a 20 rupees worth of lens cleaner in the windshield washer container & use that. I haven't faced any such issues even in the worst of winters. I drive an Alto, & numerous times have I driven around 10-12 kms without any fogging issue & this is without the heater switched on.

Drive safe.

[satish_tns]

Hi all... Yesterday i went into an intensive test in my swift vdi-abs for this outside fogging issue and finally was able to reach office without NO fog on any of the glass.. Here's what i did.. I usually have the corner ac blowers in vertical direction so the blades will be from top to bottom.. I changes it to horizontal direction so it looked exactly like the center ac wents and set the temperature to one before the end of the cool temp which is i changes from the coolest end (blue colour area) to the other end of the cool end (blue). This worked and i dint have any notable compromise in the cooling effect in the cabin. Totally 30km i went up and down to office with no cooling... !!! I will test it today and tomorrow and see if that is consistent and then i will post the pics of the ac blower position and the temp setting that i used.. Note, this is swift vdi and i am not telling about the climate control as in zxi... Drive safe...

[rajeev k]

This is a real unresolved puzzle. The instruction manuals are of no use here. It occurs or not and solution is difficult.

In some cases partially opening the door glass helps, sometimes not.

AC in slow mode with ocassional shut of AC helps.

[hybridpetrol]

From my experience:
One particular day, I was descending the Ooty hills around 7 pm and it was really cold outside. Obviously, the temperature was higher inside the car, than outside, which is the reason for the mist formation all around, and it was outside of the car.
I had put my AC, in Fresh Air mode, and set the control to the 'Defrost'. I set the cooling/heating knob to half (Normal temperature) and blower speed to 2, because I did not want to set to full heat because my son was sleeping. Most of the fog got cleared almost immediately. However, bottom part of the screen still had fog. Since I was coming down, my immediate front visibility was poor. I had to sit straight with my seating position adjusted for the visibility. The problem solved immediately after I reached down the hill.
In usual driving conditions (plains, temperate climate), the only times I face this is when it is raining and the AC is off, and immediately after switching on the AC the windscreen becomes clear.