Stabil Marine 360. It's used in boats (marine). Look it up for info. The RED is for storage only, whereas the Marine 360 (blue) is used year round.
I also suggest trying the starting fluid. You shouldn't have a fire unless you're squirting half a can!
If it fires up and runs for a brief instant with the starting fluid, that's strong evidence you have a fuel problem... either bad fuel (ethanol/moisture contamination), or starvation - something obstructing the fuel flow.