Prestone Windshield De-Icer is made from a concentrated high performance ice-melting formula that melts ice fast and helps reduce dangerous refreeze. Convenient ice scraper top helps clear icy windshields fast. Methanol is considered the most effective alcohol for melting ice. The high methanol content in Prestone Windshield De-Icer ensures strong ice melting power. Prestones uniquely designed micro edge ice scraper can withstand tough use. The polycarbonate blade is stronger than conventional plastics found in many scrapers. Highlights: Size: 1 Gallon Formulated for even the coldest winters Trademarked yellow color Removes frost and light ice Use at full strength Add directly to washer fluid reservoir Also helps prevent dangerous re-freeze from forming on your windshield Fluid with Dirt Blocker is specifically engineered to improve winter driving visibility Provides windshield cleaning performance in the messiest of winter weather conditions Make sure to wash exposed skin thoroughly with soap and water after each use Quickly removes light ice and frost won t freeze up in the washer reservoir at temperatures as low as -34 degrees F and guards against re-freeze on the windshield Directions for Use: Turn on car and start defrosters. Spray Prestone Windshield De-Icer on frosted or iced area. Wait a few seconds. Operate windshield wipers to clean windshield remove loose ice with scraper. Do not use on plastic windows. Do not invert can while spraying. For Thick Ice: Use the stream option on the trigger sprayer to cover large areas. Score ice with scraper then soak generously with Prestone Windshield De-Icer. Size=Gallon Formulated for even the coldest winters. Quickly removes light ice and frost won t freeze up in the washer reservoir at temperatures as low as -34 degrees F and guards against re-freeze on the windshield Provides windshield cleaning performance in the messiest of winter weather conditions. Trademarked yellow color