1994 Chevrolet S10 Pickup Owner's Manual - Page 248

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