Abstract: In combination with a license plate holder, spring-hinged gasoline fill cover of the type used in conjunction with center gasoline fill openings provided at the rear of motor vehicles, a hinged device for holding the cover in its horizontal, or refueling position. The device consists of a base plate rigidly secured to the vehicle chassis, and pivotally attached to a holding arm wherein, once the cover is pivoted to its horizontal position, the holding arm is free to pivot in a horizontal plane above the fill cover, from a normal resting position to a substantially perpendicular holding position to hold the fill cover horizontally against spring force.