1997 Oldsmobile Bravada Owner's Manual - Page 246

So, it isn't a good idea to "top off' your brake fluid. 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. Checking Brake Fluid I a - CAUTION: If you have too much brake fluid, it can spill on the engine. The fluid will burn if the engine ishot 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. You can check the brake fluid without taking off the cap. Refer to the Maintenance Schedule to determine when to check your brake fluid. See "Periodic Maintenance Inspections" in the Index. Just look at the windows on the brake fluid reservoir. The fluid levels should be above MIN. If they aren't, have your brake system checked to see if there is a leak. After work is done on the brake hydraulic system, make sure the levels are above MIN and below the top of each window. 6-26