DOT 4 meaning

DOT 4 definition

This brake fluid has a borate ester base. It is clear or light amber in color. Its dry boiling point is 446° minimum and wet boiling point of 311° minimum. It is used in many European cars; also for vehicles in high-altitude, towing, or high-speed braking situations, or ABS systems. It does not require cleaning the system and it can be mixed with DOT 3 without damage to the system. The problem with it is that it absorbs moisture out of the air and thereby reduces its boiling point . It can also damage the paint on a vehicle.

Automotive Dictionary Index

Automotive terms beginning with "D", page 3

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 2 3 4 8

D: Page 3 of 26.

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