AP Racing Formula DOT 5.1 brake fluid Brand AP Racing (UK) Website APRacing.com Part number CP4510-1 AP Racing Formula DOT 5.1 brake fluid conforms to S.A.E. J1703 specifications and has a dry boiling point of 275°C. Superior -40°C viscosity makes it suitable for cold conditions too. Related links AP Racing Formula 330x32 mm 6 pot big brake kit Modifications - Brakes