wrote:

Unless something has changed, jets cant burn avgas-too hot,will burn up
turbine wheels etc.Pilot was probably bs-ing you

Nothing has changed, the reverse cycle just doesn't work. ie. you
typically can't burn JetA in an AvGas engine...

I had a key to the mogas pump, I believe he said it would burn that as
well. He opted to wait for the FBO to pump the JetA, had to page him and
wait 45 minutes or so...