determined by global markets how long can banning exports hold down prices? Till November 3?? Just like the 5 grand divvy?

Hahahahaha

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An export ban operates as a political band-aid rather than an economic solution. While it can successfully mask high prices for roughly 30 days, the long-term result of isolating a domestic market from global trade is lower domestic refinery utilization, structural fuel shortages, and ultimately higher prices at the pump.

Under ideal conditions, standard diesel fuel will begin to degrade and "gum up" within 6 to 12 months . Under poor conditions, it can start to deteriorate in as little as 28 days.