john smith wrote:

Here is a question to challenge your understanding of engine operation...

During Winter in the colder climes, do you use less fuel when you fly
because the air is more dense?
It takes less energy to compress air in the cylinder (or in any other
centrifugal or axial compressor) at lower temperature so I would say that
the thermodynamic cycle (in a reciprocating engine or gas turbine) is more
efficient.