1995 GMC Safari Owner's Manual - Page 236

To Check Brake Fluid You can check the brake fluid without taking off the cap.Just look atthe windows on the brake fluid reservoir. The fluid levels should be above MIN. If they aren't, have your brake system checked see if there is a leak. to After work is done on the brake hydraulic system, make sure the levels are top above MIN and below the of each window, What to Add When you do need brake fluid, use only DOT-3 brake fluid - such as (GM Part No. 1052535). Use new brake fluidfrom a Delco Supreme 1l@ sealed container only,and always clean the brake fluid reservoir cap before removing it. NOTICE: 0 Don't let someone put in the wrong kind of fluid. For example, just a few drops of mineral-based oil, suchas engine oil, inyour brake system can damage brake system parts so badly that they'll have to be replaced. Brake fluid can damage paint, so be careful not to spillbrake fluid onyour vehicle, If you do, washit off immediately. See "Appearance Care" in the Index. 6-30