1993 Buick Skylark Owner's Manual - Page 235

Power Steering Fluid What to Add: Refer to the Maintenance Schedule determine what to kind of fluid to use. See "Recommended Fluids and Lubricants" in the Index. I How To Check Power Steering Fluid: Unscrew the cap and wipe dipstick with .a clean rag. the Replace the cap and completely tighten Then remove it. the cap again and look the fluid level on the dipstick. at When the engine compartment is hot, the level "HOT" mark. should be at the When the engine compartmentis cool, the level should be at the "FULL COLD" mark. 234