1993 Pontiac Bonneville Owner's Manual - Page 245

Service & Appearance Care Brake Master Cylinder (CONI:) your linings are worn, then you'll have too much fluid whenyou get new brake linings. You should add (or remove) brake fluid, as necessary, only when work is done on the brake hydraulic system. When your brake fluid falls to a low level, your brake warning light will come on. A continuous chime will sound if you try to drive with this warning light on. See the Index under Brake System Warning Light. What to Add: When you do need brake fluid, use only DOT-3 brake fluid-such as Delco Supreme ll@(GM P r No. 1052535). at Use new brake fluid from a sealed container only. DOT-5 silicone brake fluid can damage your vehicle. Don't use it. Don't let someone put in the wrong kind of fluid. For example, just a few drops of mineral-based oil, such as engine oil, in your brake system can damage brake system partsso badly that they'll have to be replaced. Brake fluid can damage paint, so be careful not to spill brake fluid on your vehicle. ,Ifhid, it cantoo muchthe you have brake spill on I engine. The fluid will burn if the engine is hot enough. You or others could be burned, and your engine could be damaged. Add brake fluid only when work is done on the brake hydraulic system. 244