Road Angels

Hydraulic oil delivers power, lubricates components, dissipates heat, and carries away contaminants. To perform these functions, hydraulic oils contain specific additives to enhance their ability to stand up to the pressure, temperature extremes, and other operating conditions to which they have subjected.

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The most common base stock for modern hydraulic fluid is mineral oil, which is referred to as a Group I base oil. Other types of base stock may be required for special purposes and may include fluids such as propylene glycol or silicone oils.