Winter stuff

If anyone's interested - Asda are selling screenwash/ de icer etc at 2 for £2 - I find the blue stuff( normally £1.5 for 2.5l) , works OK most of the year , and most of the winter neat. It will freeze on a cold screen ,but OK if the heater's hot .Although consensus is not to add stuff like washing up liquid , ( due to salt content) - I've found that a dash of the cheapest washing up liquid gets rid of any road muck( like the stuff HGV/BUSES leave .) and never had any problems with the salt content ( compared to that put down by LA at this time of year ,I'd say it's nothing to compare).