My company caters to companies, school systems with fleets and drivers that want to save on fuel costs. This product has been tested over a 7 year period and 300 million miles. It is patented and EPA approved. It reduces exhaust and toxic emissions by 30% to 50%. It will not harm engines engine parts, fuel lines or storage tanks. Because of its cleaning and lubricating properties it reduces engine wear and heat. This means that vehicle maintenance cost will be substantially reduced. A vehicle with a 20 gallon tank that gets 20 mpg can realize an additional 80 miles per tank with the 20% savings. From another perspective a 20% savings on a $4.00 per gallon gasoline/diesel fuel cost, amounts to 80 cents per gallon. This would result in a $16.00 savings per tank. If these figures are extrapolated over a year, the savings would be astronomical.