1994 Buick Century Owner's Manual - Page 231

should haveyour brake system fixed, since leak means a that sooner or later your brakes won't work well, or won't work at all. So, it isn't a good to "topoff' idea your brake fluid. Adding brake fluid won't correct a leak. If you add fluid when your linings are worn, then you'll have toomuch fluid when you get new brake linings. You should add (or remove) brake fluid, as necessary, only when work is done on the brake hydraulic system. What to Add When you do need brake fluid, only DOT-3 brake use 11 at fluid -- such as Delco Supreme (GM P r No.1052535). Use new brake fluid from asealed container only, and alwaysclean the brake fluid reservoir cap before removing it. @ NOTICE: DOT-5 silicone brake fluid can damage your vehicle. Don't use it. a Don't let someone put in the wrong kindof fluid. For example,just a few drops of mineral-based oil, such as engine oil, in your brake system can damage brake system parts so badly thatthey'll have to be replaced. Brake fluid can damage paint, so be careful not tospill brake fluid on your vehicle. If ,youdo, wash it off immediately. See "Appearance Care"in the Index. When your brake fluid falls to a level, your brake low warning lightwill come on. See "Brake System Warning Light" in the Index. 229