Diesel costs have jumped to record levels in Hawaii and nationwide, which is bad for truckers, shoppers, and anyone buying goods that arrive by truck.

• Honolulu diesel hit $7 a gallon, a record, and it is the cheapest diesel in the islands.
• The national average is above $6.50, more than two dollars over regular gas.
• The Trump administration is weighing a ban on selling diesel to other countries to keep more supply at home.
• Higher diesel means higher delivery costs, and those costs land on store prices.
• Oil prices eased after Iran said it could reopen the Strait of Hormuz within a week if the U.S. drops its shipping embargo.

Outlook: If talks with Iran hold and shipping reopens, diesel could come down, but prices stay at records until supply actually moves.