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What is indicated if the hydraulic oil appears cloudy and milky-white during daily walkaround?

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Clean hydraulic oil is clear amber. A opaque cloudy milky coloration points directly to severe water contamination, which leads to chemical fluid emulsification. Water can seep in via loose tank caps, pressure wash spray, or leaky coolers.

What is indicated if the hydraulic oil appears cloudy and milky-white during daily walkaround?

High-temperature oil oxidation over time

Excessive metallic dust inside system lines

Severe water contamination causing emulsification

High hydraulic pump cavitation bubble layers

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