If you could buy a little packet for as little as $15 and it saved you $90 at the pump, would you buy just 1 or would you keep buying them? You can expect. 10 to 20% increased mileage - (it harnesses more energy from each fuel molecule) 40 to 70% emissions reduction - (more of the fuel at a molecular level is consumed) Increased power in any Diesel or Gasoline engine! 91 Octane gaso...