Reply To: Brake fluid specification

[John & Shirley Harvey]

The problem with DOT 5 fluid is that although it does not absorb moisture, if you use it in a vented system, such as those before disc brakes, the moisture that does enter, and moisture will enter, will collect in the low points of the system, like low bends in the lines,  This results in rust in those places, and also, if your car is subject to freezing temps, frozen blocks in the line.