What causes milky hydraulic oil?
What causes milky hydraulic oil? Oil turning milky white generally means that water is entering the reservoir. When the unit is shut down, air in the reservoir cools down, which causes water to condense into liquid form. This water should be drained out the drain plug. Does hydraulic oil break down over time? Over time, oil will degrade based on exposure to oxygen, excessive temperatures, or various contaminants. This causes the oil to release acids and other byproducts that can corrode hydraulic components or create surface deposits on vital parts. How do you get moisture out of hydraulic oil? Vacuum...