1994 Buick Roadmaster Owner's Manual - Page 246

Windshield Washer Fluid To Add NOTICE: 0 0 0 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 fluid and other parts of the'washer system. Also, water doesn't clean as well as washer fluid. Fill your washerfluid tank only 3/4 full allows for when it's very cold. This expansion, which could damage the tankif it is completely full. Don't use radiator antifreeze your in windshield washer. It can damage your washer system and paint. The windshield washer reservoir located at the left is of the engine compartment. Open the cap labeled "WASHER FLUID ONLY." Add washer fluid until the bottle full. is 244