1996 Chevrolet Astro Owner's Manual - Page 235

Power Steering Fluid How To Check Power Steering Fluid When the engine compartment is cool, 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. The levelshould be at the FULL COLD mark. Add enough fluid to bring the level up to the mark. A fluid loss in this system could indicate a problem. Have the system inspected and repaired. What to Add Refer to the Maintenance Schedule to determine what kind of fluid to use. See "Recommended Fluids and Lubricants" in the Index. NOTICE: When adding power steering fluid or making a complete fluid change, always use the proper fluid. Failure to use the proper fluid can cause leaks and damage hoses and seals. 6-27