Can hydraulic oil be mixed?

1 Answers
VonEvelyn
07/29/25 1:39pm
Hydraulic oil can be mixed, but oils with different specifications should not be mixed because their viscosity indices differ. Below are the precautions for changing hydraulic oil: Use high-quality hydraulic oil: Before changing the hydraulic oil, it is essential to pay attention to the quality of the oil. The quality of hydraulic oil on the market varies widely. Using inferior-quality hydraulic oil can damage hydraulic components, so do not opt for cheap, low-quality oil. Instead, replace it with clean, high-quality hydraulic oil. Do not start the engine when the oil is not fully filled: There are many precautions to consider when changing hydraulic oil in an excavator. For example, when the oil tank is not filled, or the cavities of the hydraulic pump and motor are not fully filled with oil, remember not to start the engine, as this could cause harm to people nearby.
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