If you don't know what DME Dimethyl Ether, it's time to find out, because if you drive a diesel you will be using DME. If you drive a gasoline driven vehicle, you will probably be using DME.
If you use any aerosol personal products, you are currently using DME as a propellant.
It's also time to invest in DME. China, U.S. and most of western Europe is using it now.