I am posting this to inform everyone about how cars work, so they don't buy into scams about some product that claims to increase the gas mileage of a car. From the University of Wisconsin: Scientists have calculated the average amount of potential energy stored in various types of fuels used by humans as an energy source. Conversion factors: 1 gallon of fuel oil = 145,000 BTU 1 cubic foot of natural gas = 1,031 BTU 1 kilowatt hour of electricity = 3,412 BTU 1 cord of wood = 20,000,000 BTU 1 gallon gasoline = 125,000 BTU End quote As...