Related: Trailer Aerodynamics Not Overly Popular, Study Shows
Diesel Prices Stay Mostly Flat for Third Week Straight
The price of diesel fuel dropped less than a cent last week and has remained relatively unchanged for the past three weeks, according to the latest numbers from the Energy Department.


The price of diesel fuel dropped less than a cent last week and has remained relatively unchanged for the past three weeks, according to the latest numbers from the Energy Department.
The national average price of on-highway diesel fuel dropped 0.8 cents and settled at $2.399 per gallon at the pump. The average price is only slightly cheaper than it was in the same week a year ago with the gap now equaling 11.8 cents.
Prices were down in most locations by region with the largest drop in prices coming to the Lower Atlantic region 1.1 cents per gallon. The loan regional increase in prices was a barely registering 0.2 cent jump on the West Coast.
Gas prices were also down last week with the average price of regular gasoline dropping by 2.1 cents and settling to $2.202 per gallon. The price is still 17.3 cents cheaper than it was in the same week a year ago.
The largest drop in prices graced the Midwest region at 4.5 cents while the largest increase in prices hit the West Coast at 3.8 cents.
Crude oil prices were up to start the week as the market is still trying to figure out of oil producing countries will agree to freeze production, according to a MarketWatch report.
In the latest of what has so far been phantom rumors about a freeze in crude oil production, Russia and Saudi Arabia announced an agreement to meet about the issue but a more recent OPEC report claimed that non-OPEC oil production could increase to end the year making a deal less likely.
More Fuel Smarts

Cummins Adjusts 2027 Engine Rollout After EPA Proposal
The engine maker will gradually introduce its new Model Year 2027 diesel engines while continuing to offer current models during the transition, citing the EPA's proposed emissions rule changes.
Read More →
EPA Proposal Could Ease 2027 Truck Costs and Buying Uncertainty
The proposal doesn't change the tougher NOx standard, but it would revise key implementation requirements that manufacturers say have driven up costs and complicated fleet purchasing decisions.
Read More →
Cummins, Paccar Ease DEF Derates After EPA Guidance
Updated diesel engine software gives truck operators more time to address emissions-system issues while staying compliant with EPA emissions standards.
Read More →
Maintenance in the Messy Middle Part 3: Biodiesel
Biodiesel can reduce emissions, improve fuel-system lubricity and use existing diesel infrastructure. But NACFE’s Messy Middle maintenance report says fleets must actively manage storage, cold-weather operation, filters and oil drain intervals to avoid problems.
Read More →
Enhance Fleet Performance with High-Efficiency Auxiliary Power Units
Drive sustainable cost savings while increasing driver comfort during short- and long-haul logistics operations.
Read More →
Maintenance in the ‘Messy Middle’ Part 2: Renewable Diesel Fuel
NACFE's latest Messy Middle Powertrain Service & Maintenance report says renewable diesel gives fleets an opportunity to reduce carbon emissions without changing trucks, fueling infrastructure or maintenance practices. But technicians still need to understand several important operational differences.
Read More →
The Diesel Engine Enters NACFE’s ‘Messy Middle’
NACFE’s new Messy Middle Powertrain Service & Maintenance report says keeping modern diesel engines running now depends as much on software, diagnostics and data as traditional mechanical service.
Read More →
DTNA Software Update Gives Truckers More Time Before DEF Derates Take Effect
The changes reflect EPA guidance aimed at reducing downtime caused by emissions-system faults while maintaining compliance requirements.
Read More →
New Agentic Predictive Maintenance Report Demonstrates How Degraded Aftertreatment Systems Waste Fuel
Questar analyzed a large mixed-class fleet and discovered it was wasting as much as $30 in fuel per vehicle, per day, because of mechanically degraded aftertreatment systems.
Read More →
New York City's Microhub Project is Delivering Results
Trucking, last-mile delivery companies, and environmental advocates like what they are seeing so far with New York's microhub program.
Read More →
