shell petrol station on m6, selling carplan low temp protection s/wash, so i asked what temps it protects too, no idea said the assistant, and it was not written on the container.


local factors had 4 diff ones and only one had it on the container, down to -15 deg c (not good enough if last winter is anything to go by).
bluecol do one down to -25 deg c if im correct, but cannot find it sold.
anyone else found a good one, last year i blew/froze the bottom out of a screenwasher motor and dont wish to repeat.