If liquid is not compressible, why do we need special hydraulic fluid? Why not just use water?
In: Engineering
I was offshore in my mate’s boat, a small runabout with hydraulic steering. About 10km out, circling the fishing spot, the steering became weak, and gradually stopped altogether. My mate (an engineer), diagnosed it as a hydraulic leak, and had some spare hydraulic fluid, which he topped up and we headed in. About half way in, lost steering again but had used all the fluid, so he sprayed out a can of WD40 into a cup and used that. Coming back into Sydney heads, lost steering again, had used all the oil, so he used water. It got us home. Later, he rebuilt the steering.
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