Fuel prices seem to go down prior to elections, this one is no exception. $3.29 cash today... cheap... lol... big drop from $4.50! Enjoy it while it lasts into early November.
If it is manipulated, I suspect that's what it is, it's done to adjust your psychology to think the people in charge are doing a good job. Power of the traders under control of the govt. They will do everything they can to manage your perceptions. Each prior govt did the same back to at least Obama, there's nothing new here.
They generally have to make up for the drop in price by rising it higher to compensate. Not to mention, constriction in corn production due to draught, higher fertilizer prices meaning higher corn prices next year and thus higher corn cost of. ethanol... I'd expect costs to go way up again even as they tap the Strategic petroleum reserve, unless signs of global economy slow down show up.
Til then... enjoy the psych game...