ETHOS - TWO (2) 16oz Bottles

I bought three 16 oz. bottles and followed the directions to the letter. I am on the third bottle and my gas mileage has not changed at all. The bottles are also designed with a fat and wide "mouth" and is very difficult to pour into your gas tank. It should have been designed with a narrower and longer neck or spout. They have a return policy and I have not investigated getting my money back. More time I don't have. This product was reviewed (you could see the exact shaped bottle, although the name had tape over it-strange) on a major TV network along with other gas "savers" and all were noted as a waste of money and do not live up to their claim.
For the $$ spent, you are better off getting a professional tune up and/or fuel injection service and using a lighter foot on the gas pedal.
Signed, SUCKER