1996 Buick Roadmaster Owner's Manual - Page 248

Brakes Brake Fluid your brake systemfixed, since aleak means that sooner or later your brakes won't work well, or won't work at all. So, it isn't a good idea "top off" your brake fluid. to Adding brake fluid won't correct a leak. If you add fluid when your linings are worn, then you'll have too much 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. Your brake master cylinder reservoir here. It isfilled is with DOT-3 brake fluid. There are only two reasons why the brake fluid level in the reservoir might down. The first is that the brake go fluid goes down to an acceptable level during normal brake lining wear. When new linings are put in, the fluid level goes back up. The other reason that fluid is is leaking outof the brake system.If it is, you should have If you have too much brake fluid, it can spill on the engine. The fluid burn if the engineis hot will enough. You or others could be burned, and your vehicle could be damaged. Add brake fluid only when work is done on the brake hydraulic system. Refer to the Maintenance Scheduleto determine when to check your brake fluid. "Periodic Maintenance See Inspections" in the Index. 6-26