1997 Buick Skylark Owner's Manual - Page 262

Adding Washer Fluid NOTICE: 0 0 0 Open the cap labeledWASHER FLUID OWY. Add washer fluid until the tank is full. 0 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 tank and fluid other partsof the washersystem. 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 expansionif freezing occurs, which could damage the tank it is if completely full. Don't use radiator antifreeze in your windshield washer. It can damage your washer system and paint. 6-27