Bel-Ray Super DOT 4 Brake Fluid exceeds FMVSS  Sec. 571.116 DOT 4 motor vehicle brake fluid, 

SAE J1703 and ISO 4925 specifications. Mixes with all fluids meeting DOT 3 or DOT 4 specifications.

 For use in all drum or disc brake systems and hydraulic clutches, 

except systems using mineral-based fluids (LHM). Boiling Point: Dry 446°F, Wet 311°F