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Is it OK to use any old parts store windshield washer fluid on a B5.5?

6.8K views 44 replies 26 participants last post by  UrbanLegend  
#1 ·
This feels like such a stupid question. But, everything else is so freakin specialized on these cars that I thought to ask.
Can I use whatever windshield wiper fluid that happens to be on sale at the parts store?

The last one I bought was Mr. Clean. My wife hardly uses her washers and we get the oil changed so often at the shop that it almost never runs out. So, most of the parts store stuff ends up in the truckster.
 
#7 ·
i'd be careful if i were you. if you mix these multiple kinds of liquids, it could cause sever sludging in the system thus blocking the wiper nozzles, and toasting the pump.

oh, don't forget to keep an eye on your brake fluid after you install the slotted and cross drilled break lines (common mod) and keep your blinker fluid topped off :thumbup:
 
#3 ·
No no no no no! You must buy VW part number ZVW-177-903, or else you... uh... will blow up your, uh, wipers.

Just kidding (though that is the real VW part number for the half-gallon jug).

You can use any old thing, so long as it does not freeze, if you live someplace that gets below freezing temperatures (even one day a year.) Make sure you use something that says "good for minus-whatever degrees" if this is the case.

I really like the Prestone washer fluids- the green stuff from May 1 to Oct 1, and the yellow stuff from Oct 1-May 1. But I'm funny that way.
 
#12 ·
I just use the blue stuff and was thinking of the green Mr. Clean one. But, we'll leave that for the truck. I'm off to check my blinker fluid now. Wouldn't want to run low on that. Especially since no one uses blinkers in California.
Maybe the truck would benefit from slotted, ventilated rotors...

But seriously folks... Do people really believe that stuff in the manual or are you all just sending a noob on a snipe hunt?
 
#17 ·
> Ok, so I'm incredibly cheap. I fill the tank up with the hose and add a bit of windex to the mix. But it works great if it's above freezing!

OK, so years ago I took out the entire washer system on a Volvo by using a concentrate and regular tap water. It wasn't a mineral thing, it was a living organism thing... Mold and god knows what else started growing in the resevior after doing this for years, then it all clogged up and it was over.

So, I'm sure we have a wide range of cleaner chemicals that are OK. But, after that, I'm going with something that's got distilled water in it.

P.S. If you're incredibly cheap, why a Passat? :)
Just kiddin. I'm in the same quandry....
 
#27 ·
Well, I decided to do some research about what is in the windex versus the washer fluid to find out if I really should "splurge" for the washer fluid instead.

The stuff that's marketed as windshield washer fluid is generally formulated with methanol, propylene glycol and water. The windex is made of isopropanol, ethylene glycol monohexylether and water. I think the kind I used also has ammonia in it.

Essentially, the chemicals in both products do the same thing (because they are designed for similar applications) and none of them are in any way harmful to the car. So, since I have windex under the kitchen sink anyway, I feel as if I am saving a few bucks, and not being pound foolish ;), by using it instead of buying a bottle of washer fluid.
 
#29 ·
The stuff that's marketed as windshield washer fluid is generally formulated with methanol, propylene glycol and water. The windex is made of isopropanol, ethylene glycol monohexylether and water. I think the kind I used also has ammonia in it.
Hmm. From experience washing large storefront windows, regular windex deteriorated the rubber squeegee I was using, so I switched to a commercial cleaner intended for the use. I think it was the ammonia; and I think it may have the same effect on your wiper blades.
 
#35 ·
^^LOL I just got bent over by the dealer for my muffler bearings. 2nd time this year.

Seriously though does the orange Rain-x (2 in 1 bug and -25F formula) really stain your car/ leave orange crud? I just bought a bottle but haven't used it yet.

Maybe all of them leave this residue and only the rain-x is visible?
 
#38 ·
I pretty much play it safe and don't use any chemicals. Instead I have a team of pygmy window washers that coinhabit my luggage compartment with my trunk monkey that hold climb out and remove any disagreeable deposits from my windscreen when I push the rewired OnStar button, which now sends a high current shot to their buttcheeks instead of calling in for directions.
now thats a sweet set up
 
#42 ·
Do you fill the reservoir directly or put it in a bottle first?