1998 Cadillac Eldorado Owner's Manual - Page 307

Adding Washer Fluid NOTICE: 0 0 0 The windshield washer fluid reservoir located next is to the air cleaneron the driver's side of the engine. Open the cap labeled WASHER FLUID ONLY. Add washer fluid until the tank is full. 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 tank and other parts of the washer system. Also, water doesn't cleanas well as washer fluid. Fill your washer fluid tank only three-quarters full whenit'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. 6-27