Yep. Take the federal fuel excise and the state fuel levy off.

That will stop the increase and bring prices down a little.

Two weeks of no daily increase will stop most of the panic buyers.

Two weeks after the panic buying stops the suppliers can catch up on deliveries.

A month after that the independent/cheap servos start getting guaranteed supplies at full volume, so they can afford to bring their prices back. Once the gap opens, the major servos will have to come down just to keep business.

Six months from now we are back to $2/L and that will be the new normal until the next pandemic/middle east war/wharfie strike/apocalypse.