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Author Topic:   Brake fluid
Dirt Maniac

Total posts: 141
posted July 11, 2001 09:16 PM
If water can be absorbed into an open container of fluid, even with the cap on tight, then that means all fluid in any master cylinder will always be contaminated also. A master cylinder will never seal as tightly as a cap on a bottle. So this would mean no matter what I do the fluid will always be contaminated?

Dirt Roller

Total posts: 19
posted July 12, 2001 10:38 AM
If you have ever wondered why it is recommened that you change the fluid in this supposedly "closed system" I think you have answered your own question. I think for road vehicles the recommened interval is 2 years. For race cars ? (I change mine once a year and I'm sure that is not often enough). I believe some of the synthetics don't attract water as quickly.

Dirt Maniac

Total posts: 168
posted July 12, 2001 11:50 AM
Once a year is probably good enough. I've used a couple different brands of master cylinders and they say don't use silicone fluid so I would stay away from that stuff.

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