Oil eases and freight credit firms while diesel holds above $5.45

The national on-highway diesel average sat at $5.454 a gallon in the week to August 17, up 3.7% on the week and 46.9% on the year, on Energy Information Administration figures. The number a driver watches next turned the other way: Brent crude fell $2.35 to $88.19 a barrel as Washington raised pressure on Iran, [Transport Topics reported](https://www.ttnews.com/articles/oil-prices--us-pressure-iran). Oil is the largest single input to the pump price, and it leads. Treat the diesel figure as direction, not as what you pay: it is a retail average including taxes, surveyed each Monday, and contract fleets buying at truck stops pay less, with the gap widening when prices move fast.

Freight credit is strengthening. A likely final run of BMO's transportation lending figures reflects a stronger freight market, [FreightWaves reported](https://www.freightwaves.com/news/likely-bmo-swan-song-shows-trucking-credit-strengthening) — a firm signal after a long downturn.

Truckmakers are building for less. Mobility Global trimmed its 2026 forecast for U.S. Class 8 registrations to 217,589, [per Transport Topics](https://www.ttnews.com/articles/mobility-global-class-8). Fewer new trucks on order is capacity leaving the pipeline — the mechanism that eventually tightens a loose market in the carrier's favor.

Demand held rather than surged. DAT One load posts totaled 2.7 million for the week of August 16-22, up 3%, though dry van posts were unchanged for a third straight week, [The Trucker reported](https://www.thetrucker.com/trucking-news/business/dat-dry-van-load-posts-unmoved-for-third-straight-week).

More freight is lining up at the coasts. The Port of Los Angeles is preparing for a roughly 5% volume bump as shippers route around Red Sea and Panama risks, [Trucking Dive reported](https://www.truckingdive.com/news/port-of-los-angeles-preps-for-cargo-bump-as-shippers-navigate-global-risks/828523/), while the Panama Canal Authority has signaled that falling water supplies will constrain capacity and routing for U.S. East and Gulf Coast ports, [per FreightWaves](https://www.freightwaves.com/news/panama-canal-new-capacity-cuts-put-us-ports-on-notice). If you run port drayage or eastbound intermodal, that is the disruption to plan around.

None of this is a turn on its own. July's freight indices fell across every segment, and diesel is still high. But after weeks of headlines running one direction, the barrel easing and freight credit firming are the two lines pointing the driver's way.