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Reply to "Clutch - Automatic Transmission Fluid (Shell IID) - oil color change"

Sorry that I forgot about this thread...

Well, the settlement test is more for trapped air than water, oil may or may not settle out of lube oils depending on a number of factors.

OilKan's hot plate test is good, though, I prefer to precisely measure a sample of the oil (by wieght works well) then heat it for, say an hour at 95C or so on a hotplate. A decrease in volume pretty much implies water.
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