Prestone De-Icer Windshield Washer Fluid is specially formulated to tackle tough winter conditions, helping to remove light ice, frost, and grime for improved visibility. Designed for use in temperatures as low as -34°F, it prevents refreezing and ensures clear windshields during harsh weather. Safe for vehicles with rain-sensing wipers, it effectively cleans winter salt and dirt for a streak-free finish. For best results, use at full strength and fill directly into the washer fluid reservoir. Keep your windshield clear and your drive safe with this reliable winter solution.