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Not knowing the answer, I'm asking!
I'm guessing any regular washer fluid with antifreeze protection will suffice?
Having driven electric for past 2 winters.. I have not even thought of that....yea the one thing to bear in mind is that when diluted screen wash says use 70% for winter don't carry on diluting 25% like I always used to with ICE cars, as if it does freeze there's no engine to thaw anything out and it's a complete nightmare
Definitely less than 25lHaving driven electric for past 2 winters.. I have not even thought of that....
25l drum of screen wash on its way.... (I have emptied the screen was in 2000 miles).
Anyone know the size of the screen wash bottle?
yea the one thing to bear in mind is that when diluted screen wash says use 70% for winter don't carry on diluting 25% like I always used to with ICE cars, as if it does freeze there's no engine to thaw anything out and it's a complete nightmare
Many years ago, I made up a small concentric heat exchanger, just using some brazed up copper pipe and fittings, that used engine coolant to heat up a slug of screenwash, so the screen got hit with warm screenwash. It worked very well, and this thread has got me thinking about making up an electric immersible heater that could be fitted into the screenwash tank, perhaps by getting a spare lid and running a cable through it. It would then be a matter of finding 12 V power nearby, that's only on when the car is on, and knocking up a sensor to only warm up the screenwash tank in very cold weather. It doesn't need much heat, just having screenwash at 20°C or so above freezing is fine for quickly de-icing a screen, with minimal risk of damage from the temperature differential. Slightly warm screenwash also gets rid of bugs a lot easier, I found.
That's a neater idea, just needs a suitable switched power source. Might be something that a company like Hansshow could look at, as an accessory, complete with control box. If the front screen demist signal can be pulled off the CANbus, then that could be used to turn the heater on and off, perhaps.
That's a neater idea, just needs a suitable switched power source. Might be something that a company like Hansshow could look at, as an accessory, complete with control box. If the front screen demist signal can be pulled off the CANbus, then that could be used to turn the heater on and off, perhaps.
There's all sorts of controllers available, including ones that are controllable over USB. Pull a permanently live 12V feed off somewhere to power the dew strap, a controller and a small Rasberry Pi, bung in a temperature sensor and you could automate it so it senses when the air temperature drops below freezing. No more frozen wash bottles!
Heath Robinson is my middle name!
Sorry to spill the creative juices but would it not be cheaper and a better use of time to just buy screenwash that's rated to -30c? Add that neat and if the temperature goes below that then I'd suggest staying inside. Suspect the weatherman will too!
If you really wanted to splash out you could buy some dedicated bug remover as well
Sorry to spill the creative juices but would it not be cheaper and a better use of time to just buy screenwash that's rated to -30c? Add that neat and if the temperature goes below that then I'd suggest staying inside. Suspect the weatherman will too!
If you really wanted to splash out you could buy some dedicated bug remover as well
Given the hassle I've just been through, I won't be spraying warm water onto my frozen glass. Keen to hear how it turns out though.It's not about stopping the screenwash from freezing, it's about enabling it to help de-ice the screen in very cold weather. Last time I had the heated screenwash gadget fitted to a car it was great for quickly de-icing the screen, and less hassle than either using a spray or waiting for the demister to impart enough warmth to the screen to melt the ice.