1996 Pontiac Grand Prix Owner's Manual - Page 252

How To Check Power Steering Fluid When the engine compartment is cool, unscrew the cap and wipe thedipstick with a clean rag. Replace the cap and completely tighten it. Then remove the cap again and look at the fluid level on the dipstick. When the engine compartment is hot, the level should be at the H mark. When it's cold, the level should be at the C mark. If the fluid is at the ADD mark, you should add fluid. Windshield Washer Fluid What to Use When you need windshield washer fluid, be sure 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. Adding Washer Fluid What to Use Refer to the Maintenance Schedule to determine what kind of fluid to use. See "Recommended Fluids and Lubricants" in the Index. Always use the proper fluid. Failure to use the proper fluid can cause leaks and damage hoses and seals.