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GL Brake & Clutch Fluid

1.Meets FMVSS 116 DOT3 ,SAEJ1703,ISO4925 standards.
2.Widely used in the hydraulic brake system and clutch system of any senior miniature vehicles,cars,trucks and motorcycles.
3.Good low temperature fluidity and strong resistance to high temperature,assuring the safety of driving in low and high temperature,wet and cold weather.

  • G48

  • GL

20ft container:
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Brake fluid is a type of hydraulic fluid used in hydraulic brake and hydraulic clutch applications in automobiles, motorcycles, light trucks, and some bicycles. It is used to transfer force into pressure, and to amplify braking force. It works because liquids are not appreciably compressible.


Brake fluids must have certain characteristics and meet certain quality standards for the braking system to work properly.


For reliable, consistent brake system operation, brake fluid must maintain a constant viscosity under a wide range of temperatures, including extreme cold. This is especially important in systems with an anti-lock braking system (ABS), traction control, and stability control (ESP), as these systems often use micro-valves and require very rapid activation.

Boiling point:

Brake fluid is subjected to very high temperatures, especially in the wheel cylinders of drum brakes and disk brake calipers. It must have a high boiling point to avoid vaporizing in the lines. This vaporization creates a problem because vapor is highly compressible relative to liquid, and therefore negates the hydraulic transfer of braking force - so the brakes will fail to stop the vehicle.

Dry boiling pointWet boiling pointViscosity at -40 °C°FViscosity at 100 °C (212 °F)Primary constituent
DOT 2190 °C (374 °F)140 °C (284 °F)??castor oil/alcohol
DOT 3205 °C (401 °F)140 °C (284 °F)≤ 1500 mm2/s≥ 1.5 mm2/sglycol ether
DOT 4230 °C (446 °F)155 °C (311 °F)≤ 1800 mm2/s≥ 1.5 mm2/sglycol ether/borate ester
DOT 4+230 °C (446 °F)155 °C (311 °F)≤ 750 mm2/s≥ 1.5 mm2/sglycol ether/borate ester
LHM+249 °C (480 °F)249 °C (480 °F)≤ 1200 mm2/s[16]≥ 6.5 mm2/smineral oil
DOT 5260 °C (500 °F)180 °C (356 °F)≤ 900 mm2/s≥ 1.5 mm2/ssilicone
DOT 5.1260 °C (500 °F)180 °C (356 °F)≤ 900 mm2/s≥ 1.5 mm2/sglycol ether/borate ester
DOT 5.1 ESP260 °C (500 °F)180 °C (356 °F)≤ 750 mm2/s≥ 1.5 mm2/sglycol ether/borate ester
ISO 4925 Class 3205 °C (401 °F)140 °C (284 °F)≤ 1500 mm2/s≥ 1.5 mm2/s
ISO 4925 Class 4230 °C (446 °F)155 °C (311 °F)≤ 1500 mm2/s≥ 1.5 mm2/s
ISO 4925 Class 5-1260 °C (500 °F)180 °C (356 °F)≤ 900 mm2/s≥ 1.5 mm2/s
ISO 4925 Class 6250 °C (482 °F)165 °C (329 °F)≤ 750 mm2/s≥ 1.5 mm2/s
ISO 4925 Class 7260 °C (500 °F)180 °C (356 °F)≤ 750 mm2/s≥ 1.5 mm2/s


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