Abstract: An extruded automotive vehicle door seal provides for positional adjustment to establish an optimal sealing operation between the door and the frame against which the door closes. The structure of the door seal includes in cross section a base portion and a bulb portion. The frame against which the vehicle door closes is provided with a mounting channel into which the base portion of the adjustable door seal is seated. The base portion is preferably formed with a barbed periphery that frictionally engages the interior circumference of the mounting channel for positionally fixing the door seal relative to the vehicle frame. The position of the door seal is established by the closing of the door against the vehicle frame such that the bulb portion is engaged by the door and presses the base portion into the mounting channel to position the door seal in an optimal sealing position.