AP Radi-Cal™ R3 Brake Fluid

Radi-CAL™ R3 (formerly branded PRF) ‘Typical’ New Dry Boiling Point: 325°C (617°F) ‘Wet’ E.R. (Equilibrium Reflux) Boiling Point: 195°C (383°F) Prior to the development of R4, R3 was the fluid of choice in many professional racing series around the world.Conforms to and exceeds FMVSS 116 DOT 4 and SAE J1703 and J1704. After Dark Speed uses this fluid in all our competition Time-Attack & Autocross cars.