1994 Buick Regal Owner's Manual - Page 229

Windshield Washer Fluid To Add NOTICE: 0 0 0 0 When using concentratedwasher fluid, follow themanufacturer'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 washerfluid. Fill your washer fluid tank only 3/4 full when it's very cold. This allows for expansion, 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. Open the caplabeled "WASHER FLUID ONLY." Add washer fluid until the bottle is full. 227