DEF Prices Stable at Truckstops, Delivery Prices Increase in January
The new edition of DEF Tracker from the company Integer Research shows the average price for all diesel exhaust fluid bulk supply modes in the U.S. and Canada increased for all delivery modes compared with the previous month.
The new edition of DEF Tracker from the company Integer Research shows the average price for all diesel exhaust fluid bulk supply modes in the U.S. and Canada increased for all delivery modes compared with the previous month.
Tote refill deliveries are up 7 cents per gallon nationwide, with the highest prices recorded in Denver, Portland and Salt Lake City, while metropolitan areas in the east, such as Detroit and Atlanta continue to post the lowest average prices.
Multi-drop and full-truck load DEF prices increased significantly in the U.S. and to a lesser extent in Canada, where prices have been rising only marginally for the past two consecutive months.
Average DEF truck stop prices remained stable at $2.79 per gallon in the U.S., which has been the case since November 2012, while the Canadian national average has also remained unchanged at 80 cents per liter (Canadian) since October 2011.
More Fuel Smarts

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 →
Lessons Learned About Alternative Fuels: Start Small, Stay Flexible
Practical advice on adopting alternative fuels and ZEVs from HDT's 2026 Top Green Fleets, from renewable diesel and natural gas to electric trucks.
Read More →

