so has anyone emailed / called their respective engine manufacturer regarding the use and potential effects created by using diesel, turpentine etc.? I sent an email yesterday to AMT USA but haven't called yet.

what if any changes to the turbine oil - fuel ratio would be required?

I think there could be some value in asking them to look into this possibility and ,time permitting, report back their findings. I'm sure all the manufacturers have spare engines they can test different fuel types, primarily diesel, which would be commonly available for all of us.

just a thought

cheers
buck