U.S. diesel reportedly reaches record $6.45 a gallon

A September 18, 2026, post claims U.S. diesel reached an all-time high of $6.45 a gallon, up 64% since the Iran war began. It says farmers report nearly doubled fuel costs compared with last year, while higher trucking costs are pressuring the food supply chain. The post also claims corn, soy and wheat have rallied to multi-year highs.