Abstract: A funnel apparatus includes a fluid receiver section joined to an elongated flexible extension. Carried by the lower portion of the extension is a hollow cap fastener member having a cylindrical portion joined to a lower tapered portion. External threads on the entire periphery of the cap fastener member firmly engage the straight wall forming a cavity within an adapter cap having a flat bottom provided with a central opening. Threading of the fastener member into the adapter cap cavity maintains the abutment of its bottom with the fastener member bottom to insure a positive connection of the components as fluid is poured therethrough into a filler opening such as an automotive oil or water opening.