Diesel Price Surge in Charleston Could Soon Push Grocery Bills Higher

Economist warns that rising fuel costs will filter through to consumer prices

Apr. 7, 2026 at 11:41pm

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A geometric abstract illustration using bold shapes and primary colors to conceptually represent the economic impact of rising diesel fuel prices.Surging diesel prices threaten to drive up the cost of groceries and other consumer goods in Charleston.Charleston Today

A surge in diesel prices, partly driven by global tensions between the U.S. and Iran, is beginning to create a ripple effect that could soon hit consumers at the grocery store in Charleston, South Carolina. According to AAA, the average price of diesel in Charleston is now $5.57 per gallon, $2.13 higher than this time last year. Economists say even small day-to-day changes in fuel costs can have larger downstream impacts, as diesel is a critical part of transportation and food production.

Why it matters

Higher diesel prices will lead to increased transportation and production costs for grocery stores and farmers, which will likely be passed on to consumers through higher prices across a range of food and retail products. This could further strain household budgets already dealing with high inflation.

The details

College of Charleston economics professor Frank Hefner said fuel prices are often locked in through contracts, meaning the full effect of rising costs may not be immediate but is coming. Grocery stores don't have the option to reduce shipments, making higher transportation costs unavoidable. Truck driver Keith Cohen said the rising cost of fuel is eating into his profits, and unless fuel prices drop or freight rates increase, the situation is unsustainable. Local shopper Alethea White said grocery prices have climbed across nearly every category, with no relief in sight.

  • The average price of diesel in Charleston is now $5.57 per gallon, $2.13 higher than this time last year.
  • Nationally, diesel averages $5.64 per gallon, just 17 cents below the record highs seen in 2022.

The players

Frank Hefner

A College of Charleston economics professor who said fuel prices are often locked in through contracts, meaning the full effect of rising costs may not be immediate but is coming.

Keith Cohen

A truck driver who said the rising cost of fuel is eating into his profits, and unless fuel prices drop or freight rates increase, the situation is unsustainable.

Alethea White

A North Charleston resident who said grocery prices have climbed across nearly every category, with no relief in sight.

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What they’re saying

“Diesel is part of transportation. So what does that do to transportation costs? We've already seen it in many sectors, like the airline industry with jet fuel. We're going to start seeing this filtering through to grocery store prices.”

— Frank Hefner, College of Charleston economics professor

“Say if the load is $600, but you're used to paying $300 for 80 gallons now you're paying $500 for that, and that load is still $600. Then you only make $100 off that.”

— Keith Cohen, Truck driver

“Meat, canned goods—even fruits, and I eat a lot of fruit. I mean, everything went up. Everything.”

— Alethea White, North Charleston resident

What’s next

Economists warn that as diesel prices continue to fluctuate, consumers may soon see broader increases across retail sectors, not just at the grocery store.

The takeaway

This case highlights how rising fuel costs can have a cascading effect on consumer prices, putting further strain on household budgets already dealing with high inflation. It underscores the critical role diesel plays in transportation and food production, and the need for strategies to mitigate the impact of volatile energy prices.