1998 Pontiac Sunfire Owner's Manual - Page 273

Windshield Washer Fluid What to Use When you needwindshield washer fluid, be sure to read the manufacturer's instructions before use. If you will be operating your vehicle in an area where the temperature may fall below freezing, use a fluid that has sufficient protection against freezing. NOTICE: 0 0 Adding Washer Fluid Open the cap labeled WASHER FLUID ONLY, Add washer fluid until the tank is full. 0 0 When usingconcentrated washer fluid, follow the manufacturer's instructions for adding water. Don't mixwater with ready-to-use washer fluid. Water can cause the solution to freeze and damage yourwasher fluid tank and other parts of the washer system. Also, water doesn't cleanas well as washer fluid. Fill your washer fluidtank only three-quarters full when it's very cold. This allows for expansion if freezing occurs, which could damage the tankif it is completely full. Don't use engine coolant (antifreeze) in your windshield washer. can damage It your washer system paint. and 6-29