Quote:
Originally Posted by JCL
Colour has nothing to do with the quality of the fluid.
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Yes you are correct, but not entirely.New Oil will turn dark within a few hours of engine operation.
But I think we can agree that 108k miles has taken it's toll on the diff and TC oils ..
Being dark means that the oil it's doing it's job of cleaning but after 8 years and more than 100k miles , that oil lost it's initial properties long time ago.