Quote:
Originally Posted by porkchop
Trans fluid will attract moisture and these systems never get hot enough to burn it off.
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"Hydroscopic" trans oil issues were mostly back in the mid 70's with GM's Dexron ATF. And it was the additives causing the problem, not the actual ATF.
Quote:
Originally Posted by Dapperdan
On a similar note, over the years I've owned 4 Goldwings, Honda recommends changing brake, clutch and fork fluids at intervals. All "sealed" systems but still needing replacement! Changing slide/hydraulic fluid sounds plausible to me.
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Although brake systems are mostly sealed, DOT 3-4 brake fluid is very hydroscopic. Just removing the covers to check levels can start to contaminate the fluid. That is the reason manufacturers always recommend the use of a new sealed bottle of brake fluid when flushing or adding fluid.