Fluid used in the brake system to transfer pedal pressure to the caliper to stop or slow a vehicle. Commonly used types of brake fluid include DOT 3, DOT 4, DOT 5, and DOT 5.1. A higher "DOT" number indicates a higher boiling point of the fluid.

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Brake fluid doesn't move in the master cylinder container

I have done a clutch bleed on my toyota corolla e120 2006 because I had some difficulties shifting out of 1st gear, I bled it through the slave cylinder and I noticed the fluid was dark black, I was ...