1993 Buick Regal Owner's Manual - Page 234

What to Add: Refer to the Maintenance Schedule to determine what kind of fluid to use. See "Recommended Fluids and Lubricants" in the Index. Windshield Washer Fluid To Add: I NOTICE: I -1 I 1 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. 4 A . . L A 11 Open the cap labeled "WASHER FLUID ONLY." Add washer fluid until the bottle is full.