Although I do not use gasoline, it is an excellent degreaser. Stinky as all get out.

But what to do with the remaining mixture of chain smutz and gasoline?

Why not dip yer chain in gasoline, swish it around, remove it then immediately light the gasoline soaked chain on fire. This way you get rid of the mixture and burn off the dirt inside your chain.

Of course, this is best done will wearing loose fitting clothing, underneath a birch tree at the height of summer.

Gawd, I love "chain clean and lube" threads.