Mine keeps freezing too. Don't get the Asda 2.5 litres bottles of screenwash for £1
They looks like a bargain but even neat the damn stuff freezes.
I decided to go 'all out' and got myself a 5L bottle on concentrated BLUECOL. Dont have any more room in the reservoir to add more screenwash though since it filled to the top....otherwise i would have added hot water




