we have to wait
unfortunately in central Munich it has only -2.6 °C
and we do not expect more cold for the next week

myvatn wrote:

had the same experience -10°C and the jets are frozen ;-( Filled up with pure antifreeze (-60°)

Neat radiator antifreeze/ coolant is caustic enough to take the paint off your car................................ it's what vandals and tree huggers used to spray on cars they thought nobody should own a few years back!

I'd better get extra locks fitted to my garage door then as I have 60 litres of Halfords super concentrated winter screen wash good for down to -30c that I bought last spring when they were selling it off dirt cheap - the girl on the checkout couldn't believe I was stock piling it ready for the coming (ie this )winter
The Sainsbury's own label super concentrate that was on sale while I was at home is good for something down to -40 as well. 2018 Mini Countryman Cooper S E All4 PHEV in Melting Silver - it’s whisper quiet in EV and polluter modes

Tim in Scotland wrote:

Neat radiator antifreeze/ coolant is caustic enough to take the paint off your car................................ it's what vandals and tree huggers used to spray on cars they thought nobody should own a few years back!

Ahh yes, that's the language barrier - despite myvatn's excellent English.

In German, to distinguish between summer screen wash and winter screen wash they say 'Frostschutz' = anti-freeze. The distinction between radiator and windshield anti-freeze is either from the context or you add Scheiben-Frostschutz (windshield-) or Kühler-Frostschutz (radiator-).

Then again, I just outed myself by saying windshield rather than windscreen, didn't I?  
RRC 2Dr, RRC 4Dr,
P38, and 2 L322s
(wife thinks I'm nuts - prob right, too)

thx for the compliment, but my english is not that good

Now I try to complete the confusion:

Itr is possible that this green bad smelling stuff i emptied out from the screen wash tank was a coolanrt antifreeze.
Maybe thats the reason both liquids did not mix very well.

However
now we have a new filling with blue screen wash antifreeze and some °C above zero and no chance to test the system ;-(

As it's getting colder I'm interested to hear if wrapping the pipe around the radiator hose has made much of a difference?

I look forward to not being able to see a thing out of my windscreen again soon! 

sorry
no winter here in Bavaria - only <+5° but not freezing cold