A fuel filler adapter has a hollow body having a base end with a flange extending outwardly therefrom, and a forward end, and has a length of between 0.5 inch and 2.5 inches. A bore extends through the body at an angle of between 2.5° and 15° so that the adapter can be fitted onto a fuel nozzle. Fueling spitback is prevented by a helical fuel path which does not block air from venting from a fuel tank. Air venting from the fuel tank exits through the fuel filler adapter via one or more venting channels.