Gas 4 Free was tested on several cars, of all different makes and models
, and found on average that no matter what, the device increased mileage by a whopping 39%. One tiny Honda Civic fixed up by another neighbor had a massive mpg savings of 80%! So if you want to Discover how to Convert Your Car or Truck To Use Water and Gasoline, to Double or even Triple Your Mileage, as well as Save Money on Expensive Fuel Prices, as well as Save on the Enevironment, try Gas 4 Free!