Castrol Brake Fluid DOT4 is a high boiling synthetic brake fluid which far exceeds the requirements of the SAE J1703,SAE J1704, FMVSS
116 DOT 4 , ISO 4925 and Jis K 2233 specifications.

Typical Characteristics


Method Units Castrol Brake Fluid DOT4
Appearance Visual Clear and bright yellow liquid
Density @ 20C IP 160 g/ml 1.07
ERBP (Equilibrium Reflux Boiling Point) ASTM D1120 °C 250 min
Viscosity, Kinematic -40C IP 71 mm²/s typically 1200
Wet Equilibrium Reflux Boiling Point SAE J1703 °C 155 min
pH SAE J1703 pH 7.3
Viscosity, Kinematic 100C ASTM D445 mm²/s 2.3

Product Performance Claims

  • 4925 Class 4
  • SAE J1704

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