Heading into Roadcheck week, the freight market is doing two things at once: diesel is moving faster than rates, and capacity is preparing to disappear. The U.S. on-highway diesel average jumped 28.9 cents to $5.64 in the week ending May 4, with a 61.1-cent surge in the Midwest and a 24.7-cent climb across the Rocky Mountain region. Spot rates posted across the DAT and Truckstop networks held mostly firm into the May 9 print — dry van $2.37/mile, reefer $2.72/mile, flatbed $3.05/mile — but the May 12-14 CVSA inspection blitz is the variable rewriting the rest of the week. Independent dispatchers should expect rates to rise into Roadcheck and capacity to soften out the back of it.
Diesel: The Single Biggest Cost Move of 2026 So Far
The 28.9-cent week-over-week move reported by the EIA’s weekly retail diesel survey is the largest seven-day swing of the calendar year. Overdrive’s coverage attributes the bulk of the move to a Midwest refinery outage that lifted PADD 2 by 61.1 cents in a single week. Regional snapshot for owner-operators planning lanes:
- California: $7.36/gal — the most expensive in the country, driven by CARB-spec fuel and refinery throughput.
- West Coast less California: $6.00/gal — second-tier on the curve.
- Midwest (PADD 2): +61.1 cents in one week — the largest regional move.
- Rocky Mountain: +24.7 cents week-over-week.
- Gulf Coast: $5.18/gal — the cheapest in the country and the lowest fuel-cost lane on most national network maps.
Spot Rates: Holding Pattern Before Roadcheck
Per the latest DAT trendlines, dry-van rates ticked up a penny to $2.37/mile, reefer added a cent to $2.72/mile, and flatbed pushed 3 cents higher to $3.05/mile in the most recent print. The flatbed line continues a multi-week winning streak; FleetOwner reported flatbed has now posted gains in 18 of the last 18 weeks and reached its highest level since June 2022. All-in flatbed broker-posted rates are running approximately 31% above the same week last year.
Next week almost certainly will bring higher rates for most equipment types due to the annual International Roadcheck roadside inspection event scheduled for May 12-14.
Capacity: 7.11 Loads Per Truck, And Falling
The DAT national van load-to-truck ratio sits at 7.11 in the latest print, off from 9.14 in the March average but still elevated against historical norms for early May. The seasonal Mother’s Day reefer pull tends to push the refrigerated ratio higher this week, and Roadcheck typically withdraws 5-10% of available capacity from the spot market for 72 hours as carriers either park trucks or stay on dedicated runs. Independent dispatchers booking ahead should price three days of compressed supply into any rate-confirmation conversation Monday-Wednesday.
Lane Calls for the Week of May 11, 2026
- Texas reefer outbound: Mother’s Day floral and produce out of the Rio Grande Valley should hold above $3.30/mi to the Midwest through Tuesday.
- Midwest flatbed: The construction-season build-out keeps Chicago and Indianapolis flatbed posted rates near $3.50/mi to the Southeast.
- California dry van outbound: The fuel surcharge math is working against you. CA-to-DAL/HOU lanes that paid $1.95/mi a month ago need a 12-15 cent FSC bump to clear margin.
- Gulf Coast inbound: The cheapest fuel in the country plus port volume out of Houston/Mobile makes Gulf-bound deadhead tolerable; treat it as a Tuesday-Wednesday positioning move ahead of Friday’s Roadcheck close.
- Sun Belt dedicated: If your carrier already runs a McLane or Walmart-style dedicated swing, Roadcheck week is the wrong week to take outside loads — the dedicated lane keeps the truck off the inspection menu.
What to Watch in the Next 7 Days
The Tuesday EIA diesel print will tell whether the 28.9-cent surge is structural or a one-week refinery anomaly. The DAT load-to-truck ratio prints Wednesday afternoon. The CVSA Level I inspection volume from Day 1 of Roadcheck will surface in FreightWaves SONAR alerts by Tuesday evening, and the percentage of out-of-service vehicle findings will largely determine how much capacity comes back to the spot market by Friday. Independent dispatchers running 5-15 trucks should prioritize fuel-surcharge clauses in every Roadcheck-week rate confirmation, lock in any reefer load that pays north of $3.10/mi out of Texas through Wednesday, and resist the temptation to chase the Midwest spike past the refinery story confirming.
