McKee's 37 Anti-Frost Windshield Washer Fluid is your best effort at keeping your windshield clean and clear during harsh winter weather, where ice and snow creates an imminent threat on the safety and well being of you and your family. This advanced windshield washer fluid removes dirt and road film without leaving streaks or smears, and it actually prevents re-icing. McKee's 37 Anti-Frost Windshield Washer Fluid is your best line of defense against snow, ice, and sleet. McKee's 37 Anti-Frost Windshield Washer Fluid is arguably the best investment you can make in winter car care. Simply add a quart of this concentrated cleaner to your existing windshield washer fluid and you'll be ready for a longer winter ahead. When your windshield becomes caked with salt, dirt, and road grime, a flick of the wrist will activate your windshield washer fluid and the aforementioned contaminants will be washed away. What's more, McKee's 37 Anti-Frost Windshield Washer Fluid is formulated not to streak or smear. Your windshield has never been so clear.