Refueling retainer

A refueling retainer comprising:

• a body portion of a tubular shape configured for insertion into an inlet pipe of a fuel tank through which fuel may be introduced, wherein the body portion is arranged at a fueling-side end portion of the inlet pipe,
• wherein the body portion comprises a first component positioned on an upstream side and a second component positioned on a downstream side, and
• wherein the second component comprises:
• an upstream end portion that comprises a cylindrical cross-sectional shape and that is sized to mate with the first component;
• a central portion that comprises a reduced diameter portion and an air vent hole;
• a downstream end portion that includes:
• an elliptical portion having an elliptical shape that is non-circular, wherein the elliptical shape has a major axis with a dimension D1 and a minor axis with a dimension D2, wherein D2 is sized to receive an outer diameter of a nozzle of a refueling gun for unleaded gasoline, and wherein D2 is sized to reject an outer diameter of a nozzle of a refueling gun for leaded gasoline,
• a tapered portion extending downstream from the elliptical portion,
• a sensor cutout portion extending downstream from the elliptical portion and located below the tapered portion, and
• a claw portion extending downstream and radially inwardly from the tapered portion;
• wherein the claw portion includes first and second claws that bend inwardly toward each other and that extend from a downstream edge of the tapered portion, and
• wherein the sensor cutout portion extends from a lower edge of the first claw to a lower edge of the second claw.