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What do you do for frozen windshields and wipers? - Page 3

post #61 of 62

Heated washer fluid links

Here's a couple solutions that could be retrofitted to any car...

Microheat heated washer fluid system

You might use that in conjunction with a line with a sprayer mounted on the wiper blades (I know GM cars used to be this way). Here's something similar.

If you use a wiper-arm mounted sprayer, the heated fluid goes straight to the glass, as opposed to being exposed to the air first. This also allows you to use less fluid in my experience as you can deliver the 'shots' of washer fluid heavier in the more thickly frozen areas, vs the hood-mounted type.

I'd only be concerned about using fluid that's TOO hot on the windshield as it could cause it to shatter or crack, obviously. Generally though, but the time the fluid moves through the small diameter supply line it also cools

Some newer E65 BMW's use a similar configuration along with heated lines/nozzles that keep the fluid warm right up to the point of delivery.

It wouldn't be hard to get some of that rubber supply line from Pep Boys/Napa/etc. to plumb the dispenser line up onto the wiper arm (use some small zip ties to hold it in place). A little ghetto, but less ghetto than a mangled bumper, etc...

There's also a number of products like Zerostart which keep things from getting so cold in the first place, at least overnight.
post #62 of 62
Freeze plug heaters are a truly egregious waste of energy for people living in the United States. There is good reason why US cars don't come with them. I have a 200k+ mile truck in the driveway that started at -14 this morning no problem. I've started the same truck at -25 on the first try in past years. If you live someplace colder than that, I suggest moving.

I already posted the microheat link I think. No aftermarket product yet available.

I have no concerns about fluid that is too hot, except that if you heat the reservoir itself like some old German cars you will boil out the alcohols. I've used a propane torch on icy windshields with no problem. Also, 0 dollar glass coverage is a wise move.

The VOC rule here this year makes -25 fluid the best you can buy off the shelf. I dumped a couple bottles of drygas (methanol) in the reservoir before I topped it off last week and it worked like gangbusters this morning. Drygas sells for less here than denatured alcohol.
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EpicSki › The Barking Bear Forums › On the Snow (Skiing Forums) › Ski Gear Discussion › What do you do for frozen windshields and wipers?