Thread: Caliper Piston Size

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Originally Posted by jerry clayton

Depends on the type of brake fluid about moisture absorbsion--------and the amount of moisture also then changes the boiling point temp of the brake fluid which can be echhhhhhhhhhh in high performance type aplications or industrial , military type stuff-------

Talking plain old DOT 3 fluid, Jerry, and not in any high performance application, but DOT 3, 4 and (Correction DOT 5.1) are all hygroscopic. Just good practice to flush the fluid once in a while.