A special fluid used in hydraulic brake systems to stop or slow the car. Never use something else in place of regular fluid. There are four types of brake fluid on the market. DOT 3 , DOT 4 , DOT 5 , and DOT 5.1 .
BRAKE FLUID
Meaning of BRAKE FLUID in English
English dictionary of automotive terms. Английский словарь автомобильных терминов. 2012