Gaz, to your #15...

Thanks again for the great info and several clarifications!

I am not a analytical chemist, so I may be a bit confused by a difference between 'dissolves into' and 'dissolves.' Is there a chemical change to some other substance when ether (or nitromethane - another excellent solvent) "dissolves" an oil, or a liquid like our kerosene? If so, what do they change into?

I should have connected a few dots earlier... I've mentioned that I accept that the weight (mass if you prefer) of the propellant in John Deere Starting Ether gasses off at our usual temperatures, leaving the quoted 80% of mass as liquid ether in the standard spray can. Conversion per Specific Gravity numbers increases the volume (cc, not gram, numbers) usefully.

More? Please...