1999 Chevrolet Lumina Owner's Manual - Page 247

yellowblue How to Check Power Steering Fluid When the engine compartment is cool, wipe the cap and the top of the reservoir clean, then unscrew the cap and wipe the dipstick 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. For the 3800 engine, the level should be at the HOT mark when the engine compartment is hot. If the fluid is at the ADD mark, you should add fluid. 3800 (Code K) V6 Engine What to Use 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. 3100 (Code M) V6 Engine 6-27