Last year, with all of the snow, I ran out of windshield wiper fluid twice. Between oil changes. This had never happened before. It occurred to me a week or so ago that I should really pick up a gallon to keep in my garage, because it looks like it might be that kind of winter again. Of course, who remembers to pick up windshield wiper fluid?
My friendly neighborhood Jewel Osco grocery store had displays built up to the ceiling, in the front and back of the store, filled with gallons of wiper fluid. This is why I love them.
Standing in line to check out, I looked at the label. Will work to -20 degrees.
My boots are better than that!