Does California's average diesel reach $8 by 21 September?

Three of the last six fresh records cleared 4 per cent within four weeks: August 2004 (5.3 per cent), November 2007 (4.3 per cent) and March 2022 (8.3 per cent), the last of them in a single week. Three did not: February 2003 stopped a tenth of a cent short and set no higher price for 17 months, January 2000 took six weeks to clear the line, and December 1995 took three months. The split runs by cause rather than by era. The three that cleared came with a physical supply loss behind them; the three that did not came in winters when the squeeze was in heating demand and eased with the weather. All six, including the slow ones, set at least one further record inside the four weeks.