1993 Cadillac Eldorado Owner's Manual - Page 305

To Check Brake Fluid - 4.6 Liter (Northstar): You can check the brakefluid without taking off the cap. Just look at the indicators on the brake fluid reservoir. The fluid levels should be above "MIN." If they aren't, have your brake system checked to seeif there is a leak. After work is done on the brake hydraulic system, make sure thelevel is above "MIN" and orslightly below or at the "MAX" indicator. What to Add: When you do need brake fluid,use only DOT-3 brake fluid -- such as Delco Supreme1la (GM Part No.1052535). Use new brake. fluid from a sealed container only. 29 1