Systems to store and agitate fuel

A fuel storage system, comprising:

• a fuel storage tank;
• and
• a fuel agitation system coupled to the fuel storage tank and operable to agitate a fuel that is stored in the fuel storage tank, wherein the fuel agitation system includes:
• an elongate fuel agitation member, wherein the elongate fuel agitation member includes a lumen that extends between a first end and a second end of the elongate fuel agitation member, wherein the second end is opposite the first end;
• an air passageway in pneumatic communication with the elongate fuel agitation member, wherein the air passageway is coupled to the first end of the elongate fuel agitation member by a rotational coupling located in the fuel storage tank, wherein the rotational coupling is between the air passageway and the elongate fuel agitation member and is pneumatically actuated by air flow from the air passageway to the elongate fuel agitation member to cause the elongate fuel agitation member to rotate;
• and
• a circular disk coupled to the second end of the elongate fuel agitation member and having a plurality of valves, each of the plurality of valves in pneumatic communication with the elongate fuel agitation member to release air into the fuel in the fuel storage tank and facing toward the first end of the elongate fuel agitation member, wherein the rotation of the elongate fuel agitation member causes the circular disk to rotate.