A fuel-additive dispensing bottle used to dispense a liquid fuel additive into a capless fuel-tank system having a self-sealing mechanism triggered by tabs, the bottle comprising:
- a first neck having a circumference, an exterior surface, and an outside diameter between approximately 0.750 inches to approximately 1.19 inches;
- a first lip having a circumference, the first lip connected to a first distal end of the first neck, the first lip defining screw-cap threading configured for use with a capless fuel-tank system having a self-sealing mechanism triggered by tabs,
- wherein sections of the screw-cap threading are disrupted with a plurality of substantially planar thread disruptions, the plurality of substantially planar thread disruptions being positioned at regular intervals on the threading;
- the first neck and first lip configured for insertion into a capless fuel system having a self-sealing mechanism triggered by tabs;
- the first lip describing an orifice configured to allow fluid flow exit therefrom;
- a first fluid-holding and measuring chamber, wherein the first chamber has at least one visible fixed marking indicating a specified volume of fluid within the first chamber;
- a second fluid-holding and measuring chamber, wherein the second chamber has at least one visible fixed marking indicating a specified volume of fluid within the second chamber;
- the first chamber having a greater volume than the second chamber;
- a fluid conduit that provides a fluid-flow path from the first chamber to a side-fluid-flow entry orifice on the first neck, the fluid conduit having three portions:
- a first curved distal-end portion, a body portion, and a second curved distal-end portion,
- wherein the fluid-conduit body portion has a longitudinal axis that is substantially adjacent to and substantially parallel to at least 70% of a longitudinal length of an exterior side-edge portion of the first chamber,
- wherein the fluid-conduit first curved distal-end portion curves 80° to 100° relative to the fluid-conduit linear-body portion longitudinal axis,
- wherein the fluid-conduit second curved distal-end portion curves 80° to 100° relative to the fluid-conduit linear-body portion longitudinal axis,
- the fluid-conduit first curved distal-end portion being connected to a side-edge base portion of the first chamber and configured to allow fluid flow out of the first chamber and into the fluid-conduit first curved distal-end portion;
- the fluid-conduit second curved distal-end portion connected to the first neck at a side-fluid-flow entry orifice and configured to allow fluid flow out of fluid-conduit second curved distal-end portion and into the first neck;
- the second chamber connected to a second distal end of the first neck and configured to allow fluid flow out of the second chamber and into the first neck;
- the first neck having a longitudinal axis that is substantially parallel to the fluid-conduit linear-body portion longitudinal axis;
- and
- a second lip connected to a first distal end of a second neck, the second lip defining screw-cap threading,
- the second lip describing an orifice configured to allow fluid flow entry into the second lip;
- and
- the second neck connected to the first chamber and configured to allow fluid flow from the second neck into the first chamber.