1998 GMC Safari Owner's Manual - Page 293

NOTICE: 0 Brakes Brake Fluid 0 0 0 When usingconcentrated 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 and tank other parts of the washer system. Also, water doesn't cleanas well as washer fluid. Fill your washer fluidtank 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 paint. and Your brake master cylinder reservoir here. It is filled is with DOT-3 brake fluid. 6-31