2001 Buick Regal Owner's Manual - Page 284

See "Engine Compartment Overview" in the Index for more information on location. Open the cap labeled WASHER FLUID ONLY. Add washer fluid until the tank is full. Brakes Brake Fluid NOTICE: D When using concentrated washer fluid, D 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 could damage the tank if it is completely full. Don't use engine coolant (antifreeze) in your windshield washer. It can damage your washer system and paint. D D Your brake master cylinder reservoir is on the driver's side of the engine compartment. See "Engine Compartment Overview" in the Index. It is filled with DOT-3 brake fluid. 6-33