Like he says, wet is above a certain percentage of water absorbed by the fluid. I confess I don't know at what percentage the fluid is considered 'wet' off the top of my head.
Brake fluid is hygroscopic, that means it actively absorbs water out of the air. For a track car, anything above 1% water content is usually enough to warrant a flush and refill.
Anything above 4% is dangerous, even for a street car.
Last edited by Sh0velMan; 01-29-2014 at 09:16 AM.
Reason: Edited spelling to appease spelling bee champ WSTAR
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