What is brake fluid? We explain what brake fluid is, what purpose it is used for and also what it usually consists of.
Brake fluid is the medium in a hydraulic brake system that is used to transfer power from, for example, a brake pedal via a brake master cylinder to one or more slave cylinders, which in turn affects a mechanical brake.The medium in the braking system is usually based on either glycol, mineral oil or silicone-based fluid, but glycol is usually also found in all three groups.
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