We Tested For Ourselves
I bought and tested ethos reformulator in my own car. I did get an improvement in mileage and the smog test before and during the last 1/4 tank did show lower emissions according to the test print out from the same machine and using the same tech. A friend is a senior lab tech and he took some gas to his lab and ran molecular test himself. The tests showed that the gas was molecularly reformulated to burn more efficiently and the emissions test also showed that it burned cleaner than the gas without the ethos reformulator added to it.