Illustration: AI-assisted image depicting refrigerated food deliveries and the impact of diesel prices on grocery costs.
Michigan farmers face an estimated $58.6 million increase in diesel costs this year, while expensive transportation continues squeezing grocery stores, manufacturers and household budgets.
LANSING — Michigan gasoline prices are falling, but diesel remains nearly 72% more expensive than a year ago, raising costs for farmers, trucking companies, manufacturers and grocery stores.
A new congressional analysis estimates Michigan farmers face $58.6 million in additional diesel expenses during the 2026 planting and harvest seasons. The findings, reported Thursday by Michigan Farm Bureau, illustrate why lower gasoline prices do not necessarily mean relief throughout the economy.
Michigan Fuel Prices: What’s Changing And Why?
AAA statewide averages — November 6, 2026
Fuel Today Week Ago Year Ago Diesel $6.58 $6.70 $3.83 Regular gasoline $4.27 $4.62 $3.16
Why diesel remains expensive: The war with Iran has disrupted international petroleum supplies and shipping, while refinery constraints and tight diesel inventories have contributed to elevated prices.
Why gasoline is falling: Lower seasonal driving demand, refinery operations and recent easing in crude oil prices have helped reduce gasoline costs. Diesel has also declined, but more slowly.
Groceries: Higher diesel expenses affect farming, refrigerated transportation and supermarket deliveries, potentially raising food-distribution costs.
Farmers: A congressional analysis estimates an additional $58.6 million in Michigan diesel spending for major crop planting and harvesting.
Motorists: A 15-gallon gasoline fill-up costs about $5.23 less than last week, but $16.72 more than a year ago.
Sources: AAA Michigan, Michigan Farm Bureau, Michigan State University.
Michigan Grocery Stores Feel Diesel Pressure
Expensive diesel affects food prices long before groceries reach supermarket shelves.
Farmers use diesel-powered equipment to plant and harvest crops. Food processors depend on freight carriers, while refrigerated trucks deliver meat, dairy products and produce to warehouses and grocery stores.
Salvo Munaco, owner of Vince & Joe’s Gourmet Market in Metro Detroit, explained the financial pressure in a WXYZ-TV report.
Munaco said suppliers begin implementing fuel surcharges when diesel reaches approximately $5 per gallon.
His business attempts to absorb those expenses rather than immediately increase grocery prices, but that approach reduces profit margins.
Michigan State University food economist David Ortega explained in a September 24 university analysis that diesel costs affect the entire food supply chain.
Fresh produce, dairy and meat are particularly exposed because they require refrigerated transportation.
Ortega cautioned that fuel represents only part of grocery costs. Retailers and distributors may absorb some increases, and existing contracts can delay their effect on consumers.
Consequently, high diesel prices create upward pressure on groceries without necessarily producing immediate or equivalent retail price increases.
Michigan Farmers Face $58.6 Million Increase
The congressional analysis highlighted by Michigan Farm Bureau estimates Michigan farmers’ diesel costs for planting and harvesting five major crops will increase 86.5% compared with 2025.
The analysis was prepared by Democratic minority staff of Congress’s Joint Economic Committee. Its estimates combine spring planting costs with projected fall harvest expenses.
Michigan Farm Bureau reported several illustrative increases:
- $2,204 more to fill a typical farm fuel tank.
- $359 more to fill a tractor.
- $294 more to fill a grain truck.
These are modeled comparisons, not independently measured expenses at individual Michigan farms.
Dave Rupprecht, a third-generation Tuscola County farmer, told Michigan Public in October that diesel prices were reducing expected earnings from his corn and soybean crops.
Michigan Farm Bureau’s Teresa Sissung also told Michigan Public that some farms consume so much diesel during harvest that they require fuel deliveries nearly every day.
The increased expenses arrive as farmers manage fertilizer, equipment, labor and other production costs.
Trucking Companies Face Higher Freight Costs
Michigan trucking companies are experiencing similar pressure.
Paul Russo, president of Wayne-based steel hauler Wayne Industries, told The Detroit News in September that his company had raised its fuel surcharge to 45% of trucking rates.
Those surcharges can increase costs for manufacturers transporting steel, automotive components and finished products.
In a November 3 interview with DC Velocity, Rebecca Brewster, president of the American Transportation Research Institute, identified fuel prices as a major concern for smaller trucking companies.
She cited research placing average commercial-truck operating costs at approximately $2.37 per mile.
Brewster also reported that some carriers have reduced administrative staffing as operating costs increase and freight revenues remain under pressure.
For Michigan manufacturers, higher transportation expenses can reduce margins and complicate investment and hiring decisions.
Iran War Disrupts Global Fuel Supplies
The U.S.-Israeli war with Iran has contributed to this year’s sharp increase in petroleum prices.
In his Michigan State University analysis, Ortega explained how disruptions around the Strait of Hormuz, refinery attacks and reduced shipping capacity have constrained global supplies.
The conflict has affected both crude oil shipments and refined petroleum products, including diesel.
Other international disruptions, including attacks on Russian refineries, have compounded supply pressures.
Although crude oil prices have eased at times, diesel remains expensive because supplies and refining capacity have been constrained.
A sustained recovery in petroleum shipments and refining operations could help lower prices, although the timing remains uncertain.
Gasoline Relief Does Not Eliminate Household Pressure
According to AAA, Michigan regular gasoline averaged $4.27 Friday, down from $4.62 a week earlier.
That saves approximately $5.23 on a 15-gallon purchase.
However, the same fill-up costs about $16.72 more than a year ago.
Diesel also declined slightly this week, from $6.70 to $6.58, but remains substantially above its November 2025 average.
For Michigan families, that creates two financial pressures: higher gasoline costs than last year and transportation expenses that may contribute to grocery and other retail prices.
For businesses, expensive diesel can mean higher operating costs, smaller profits and less flexibility to invest or hire.
The bottom line: Michigan motorists are seeing some gasoline-price relief, but persistently expensive diesel continues putting pressure on the state’s economy and household budgets.
