1997 Pontiac Firebird Owner's Manual - Page 280

Windshield Washer Fluid What toUse When you need windshield washer fluid, be sure to read the manufacturer's instructions before use. If you will be operating your vehicle in anarea where the temperature may fall below freezing, use a fluid that hassufficient protection against freezing. NOTICE: When using concentrated washer fluid, follow the manufacturer's instructions for adding water. Don't mix water with ready-to-use washer fluid. Water can cause the solution to freeze and damage your washer fluid tank and other parts of the washer system. Also, water doesn't clean as well as washer fluid. Fill your washer fluid tank only three-quarters full when it's very cold. This allows for expansion if freezing occurs, which coulddamage the tank if it is completely full. Don't use radiator antifreeze in your windshield washer.It can damage your washer system and paint. Adding Washer Fluid Open the cap labeledWASHER FLUID ONLY. Add washer fluid until the tank is full. 6-35