Do Jet Engines Need Oil Changes?

Generally, there are no scheduled oil changes for jet engines. During engine maintenance, however, oil filters and seals are checked and changed if necessary. There are monitors on the flight deck for oil quantity, pressure and temperature, unlike in a car where an oil light is the only indicator.

What kind of oil do jet engines use?

Mobil Jet oils are suitable for a wide range of turbine applications in both commercial and military service. They are also suitable for aircraft-type gas turbine engines used in industrial or marine applications.

Is there oil in a jet engine?

Oil systems for commercial jet engines are rarely drained. There is no oil change as long as the engine stays on wing. The oil is only renewed by top-up, typically accomplished every day to compensate for normal engine oil consumption.