1998 GMC Jimmy Owner's Manual - Page 297

Windshield Washer Fluid What to Use When you need windshield washer fluid, be sure toread the manufacturer's instructions before use. If you will be operating your vehicle in an area where the temperature may fall below freezing, use a fluid that has sufficient protection against freezing. Open the cap labeled WASHER FLUID ONLY with the washer symbol on it. Add washer fluid until the tank is full. NOTICE: 0 Adding Washer 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 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 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 systemand paint. 6-28