Originally Posted By: Wolf359
Brake fluid is hygroscopic which means it will absorb moisture. Just the nature of brake fluid. Parts won't corrode if there's no water. Maybe your cap isn't on tight or you have a leak somewhere so the fluid is contaminated.
Best statement so far( hygroscopic). That's why it's a good idea to do a fluid flush to finish off a brake job.With a helper to pump the brakes, you can do all four wheels in twenty minutes. Also, the brand of fluid is meaningless. Whatever is specified (DOT3 or 4) has to meet certain standards, don't get hung up on the brand.