Lets do some practical math.

This thing costs $400.

To make the math easy, lets put gas at $4/gallon. So the thing costs 100 gallons of gas.

Lets pretend for a moment that it really works(Crackdream®), and works so well that it increases mileage by 10%

If you are getting 20 miles per gallon, it would take 20,000 miles just to reach the break even point. 2-3 years for the average driver just to be back to zero.

John C.