Hydraulic systems are among the largely unnoticed powerhouses of modern industry. They power excavators that tear around construction zones, raise aircraft landing gears up to 3000 feet, press automobile panels into the shape of factory floors, and keep agricultural machinery in operation throughout the harvest season. At the heart of each of the systems lies a basic substance called hydraulic oil. However, when the oil gets polluted, the effects radiate outward in ways that can be costly, hazardous, and, often, completely preventable.
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