In article , Vigo
wrote:

I have next to no experience in the Jet world, but I was under the
impression that in a bind you can burn avgas in a jet engine. I had a pilot
once tell me that if horse **** could burn you could put it in a jet. Is
this true?

Well... I don't know about the other stuff, but I have read the Cessna
Citation manual and it specifically states that avgas can be burned. I
goes on to state octane and engine temperature limits and durations.