Question on old brake fluid...

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Jul 5, 2009 | 08:27 PM

FISH22

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From: Virgnia

Question on old brake fluid...

A couple years ago, I bled my brake system with Super Blue, and had a bunch left over. It's been sitting in my house since. Was curious if it would be okay to use it for another bleed. I know certain things have a shelf life, but I wasn't sure if it's just the pressurizing inside the system that breaks down the fluid, or if it actually ages on the shelf.

Any help would be greatly appreciated!!

Jul 5, 2009 | 08:55 PM

FISH22

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From: Virgnia

Quote:

Originally Posted by hecash,Jul 5 2009, 11:39 PM

Conventional glycol-based brake fluid is hygroscopic, which means that it absorbs water. It's probably been doing that while sitting on the shelf. I never use old fluid. You may get away with it on the street but I doubt that you will on the track.

Thanks for the reply. I will probably just pick up a new bottle.