The AAA national average price for diesel fuel has reached a new record high of $5.85 as of Sept. 4, 2026, beating the prior record from June 2022.

How each outlet headlined it

• Fox Business Economy right

  The AAA national average price for diesel fuel has reached a new record high of $5.85 as of Sept. 4, 2026, beating the prior record from June 2022.
  
• The Hill center

  The average price of diesel hit an all-time high Friday in the U.S., as the conflict with Iran puts more strain on the global energy supply. The average cost of a gallon of diesel was up to around $5.85 on Friday morning, according to AAA. This is a 58 percent cost increase from a year…
  
• WSJ Markets

  Diesel hit an average $5.85 a gallon on Friday, an all-time high that surpasses the previous record from 2022.
  
• The Washington Post left

  The U.S. average price for diesel reached an all-time high of $5.85 a gallon — up nearly 60 percent from a year ago, according to AAA. Regular gas prices stood at $4.18 a gallon, up 30 percent from a year ago but still below the record of $5.01.