[Crazyrabbit]

I am driving a 2009 Toyota Matrix but believe this thread could benefit just about anyone driving a closed loop EFI gasoline burner. I have more 16 ounce cans of propane than I can count and get them for free or at next to no cost. I think I could fumigate the propane into the intake and improve my mileage. I think I could establish the maximum flow by getting the car warmed up, adding Propane until the idle speed began to drop. Anyone done this? Any thoughts on the matter? Obviously, more propane could be used once there was a load, but I'd like to start really simple. If I had infinite MPG at a stop light instead of zero, I'd call that a good starting place. A calliape manifold of solenoid valves or some proportional valve and control could go much further but I'm no going there anytime soon.