Their system is quick and easy and also sucks. I got started with that scam, but I then became much better educated on the topic.
I make my own WVO blend fuel, see my signature, but my system is a lot more involved than what DSE would have you do. I also don't use their "Secret" ingredient.
Notice, their stuff is copyrighted (the information booklet they provide) Their product is NOT patented. There's nothing special about it.
Do a search on my screen name in the Alt Fuels section and you can read about my process. Over a year now and all is good