Choosing the right hydraulic fluid
A bit of history: Engine oils have been used in a variety of applications mainly since they are available almost everywhere in the world and fit the old belief that “oil is oil” that will work at least for a while. Engine oils are designed for use in engines and may not be the best choice for other applications. Engine oils have very poor water separation and tend to emulsify water which leads to rust, wear, high operating temperatures due [...]