ATCO's WINDSHIELD WASHER SOLVENT is a concentrated year-round windshield cleaner & antifreeze. It works in all washer unit types and provides clear, safe visibility in all kinds of weather, summer or winter. WINDSHIELD WASHER SOLVENT floats away road film, grime, dirt, oil, grease, bug spatter, wiper smear, salt, etc. It is harmless to car finishes when used as directed and protects down to -20°F.