US diesel prices hit a record $5.85 per gallon on Friday. That is according to AAA data.

Reports linked the rise to wars in Iran and Ukraine. Reduced traffic through the Strait of Hormuz also played a role.

The $5.85 price is a nominal record not adjusted for inflation. The last peak was June 2022 at about $5.81 per gallon.

That equals roughly $6.56 today after inflation. PBS NewsHour reported a six-month war with Iran.

It is disrupting the world's fuel flow and squeezing supply. Some officials disputed how much the war affects prices.

Rising diesel prices are pushing up transportation costs for many goods. This adds cost pressure on businesses, factories and transport companies.

For US shoppers rising diesel costs may raise retail prices. This could raise prices for produce, toys, lumber and clothing.

The earlier price spike followed Russia's invasion of Ukraine. That invasion led to sanctions on Russia.