HMMMMM!... results below
When we mixed an approximate mix of 50 percent JP8 (Jet Fuel)
with 50 percent Liquid Propane we found that it mixed
apparently completely. One effect we noticed was the lowering
the pressure of the liquid propane by approximately 50 percent.
We allowed the propane to vaporize and after a time the same
volume of JP8 that we started with was left in the cylinder after
the Propane boiled off.