[quote=""CondorX5""]I could only get the little plastic bottles - the 500ml ones. And filled up with 4 of them

so yes, around 4l! on a 1:1 basis. I think the wind chill plus the - temps just went below what it could stand. I'll just put the pure concentrate in next time......expensive but effective, if you can get it, that is![/quote]
Not like me to be pedantic

, but 4 x 500ml is 2 litres. At I dilution of 1:3 I would have thought it would only cope with around -6C, but the stuff is in the garage and it's a bit too cold to go and look at the instructions......
X44