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Brake Fluid

Crown Brake Fluid DOT-4
It has high stability proven by meeting the FMVSS No. 116 (United States) for the first time in Korea.
Specially synthesized boron ester provides longer life cycle than the type DOT-3, with improved braking performance.
The performance is not easily deteriorated due to water absorption, so it prevents brake-defective accidents by suppressing the vapor lock.
It has higher boiling point and wet boiling point than competitors, so the boiling point is not easily degraded while offering excellent low-temperature liquidity.
It does not cause swelling or softening of rubber inside a brake system.
It is applicable to all types of vehicles including passenger cars, large trucks, and buses.
It is being supplied to Hyundai Mobis, GM Korea, and Renault Samsung.

Crown Brake Fluid DOT-4

Features of Brake Fluid
Prevents vapor lock in extreme driving conditions High boiling point and wet boiling point
Prevents the corrosion of brake system part materials (tin, steel, aluminum, cast iron, brass, copper, and zinc) Corrosion prevention
Lubricates the brake system in low-temperature conditions Kinematic viscosity and lubrication
Does not deform or damage rubber parts, and prevents the leakage of brake fluid with sufficient rubber expansion Harmony with the rubber parts
Prevents precipitation and oxidation for long-time use in high temperatures as well as precipitation and separation in low temperatures Stability

Type of Crown Brake Fluid

Type Product Characteristics
DOT 3 Crown DOT-3 SAE J1703, FMVSS NO.116 DOT-3 Grade
DOT 4 Crown DOT-4 SAE J1704, FMVSS NO.116 DOT-4 Grade
SAE J1704, FMVSS NO.116 DOT-4 Grade, ISO 4925 Class6 Grade
  • SAE - Society of Automotive Engineers
  • FMVSS - Federal Motor Vehicle Safety Standards
  • ISO - International Standardization Organization
Crown DOT-3 FMVSS No.116 (DOT-3) CROWN DOT-3
Color Amber Amber
Boiling point (℃) 205 or more 240 or more
Wet Boiling point (℃) 140 or more 148 or more
Kinematic viscosity(cst) -40℃ 1500 or less 1300 or less
Crown DOT-4 FMVSS No.116 (DOT-4) CROWN DOT-4
Color Amber Amber
Boiling point (℃) 230 or more 250 or more
Wet Boiling point (℃) 150 or more 160 or more
Kinematic viscosity (cst) -40℃ 1800 or less 1500 or less
Crown DOT-4+ ISO 4925 (Class6) CROWN DOT-4+
Color Amber Amber
Boiling point (℃) 250 or more 265 or more
Wet Boiling point (℃) 165 or more 170 or more
Kinematic viscosity(cst) -40℃ 750 or less 720 or less

  • Cautions
  • Seal the brake fluid container to prevent any exposure to water and air.
  • If it comes into contact with your skin, wash it out immediately, or, in case of ingestion, throw it up immediately, and then consult a doctor.
  • Stay away from fire. If it comes into contact with a painted surface, wash it with water to avoid any damage.
  • Do not mix it with mineral oil / silicon brake fluid and mineral oil (engine oil, gasoline, or kerosene).
  • Do not mix it with oils from different manufacturers.