Does brake fluid in an unopened bottle go bad?
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The paper seal can absorb moisture, and allow it to be absorbed by the fluid.
SOME plastics can allow moisture through.
No plastic brake fluid bottle has a good enough sealing cap to them, even when the bottle is brand new. That is likely the main source for moisture to find its way where we don't want it.
SOME plastics can allow moisture through.
No plastic brake fluid bottle has a good enough sealing cap to them, even when the bottle is brand new. That is likely the main source for moisture to find its way where we don't want it.
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