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A little more.

Airplanes use oil and oil products as a lubricant on various assemblies. Note also that jet fuel (jp-5 and others) are petroleum products as is kerosene.

Airplanes have engines, and engines use oil therefore airplanes use oil. Shell makes ten different aviation oils--six for piston engines, four for turbines.




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Good question and not as stupid as some observers think. Jet engines use the oil to not only lubricate but also to cool. The engine is designed so the air pressure is routed from the high pressure compressor and is directed so that it pushes the oil through the engine. As the oil is forced past bearings and seals it lubricates and is then directed towards the rear and past the turbine portion of the engine. Some oil is collected and then routed to a cooler(engineers call a heat exchanger) and prepares it to be recirculated. However, some oil is forced out the tail pipe and burned in the jet's exhaust. This explains why the tail pipe looks burned.


Landing Gears use a form of oil inside them to make them work. The strut is designed to absorb the forces during landing. As the gear is compressed, it forces oil from one chamber to another by passing it through a small orifice that restricts the flow.


Hydraulic Fluid is a form of oil. The hydraulic system operates at 3000 psi typically and this fluid pressure operates the hydraulic actuators that control the flaps and ailerons.
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Q: Do airplanes use oil
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