For example, "brake fluid" is hydraulic oil and will not perform its required function if there is gas in it.

In the event, only a little hydraulic oil spilled into the water.

This vane had only a small hole in it, through which the hydraulic oil could pass.

Flow of hydraulic oil around the piston took place through valves mounted in the body.

Many steel industry wastewaters are contaminated by hydraulic oil also known as soluble oil.

The candle had become contaminated with hydraulic oil, which caused the mixture to explode rather than burn.

Additionally, keeping the hydraulic oil pressurized is a constant power drain.

The pump pressurizes a working fluid, typically hydraulic oil, directly raising the pressure in the cylinder, and causing it to move.

Safety-There is a very low chance of fire compared to hydraulic oil.

The nitrogen gas within the suspension sphere is separated from the hydraulic oil through a rubber membrane.