1995 Pontiac Bonneville Owner's Manual - Page 239

Windshield Washer Fluid What to Use When you need windshield washer fluid, besure to read 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. NOTICE: 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 'clean well as washer fluid. as Fill your washer fluid tank only 3/4 full when it's very cold.This allows for expansion, which could damage the tank if it is completely full. Don't us'eradiator antifreeze in your windshield washer.It can damage your washer system and paint. To Add 0 L Open the cap labeled WASHER FLUID ONLY. Ad'd washer fluid until the tank is full. 6-26