← Back to Supply Chain Review Freight & Logistics

US diesel jumps 3.2% to $4.27 as truck capacity edges up 2–3% week-on-week

Source: EK Dispatch Academy · 2026-09-20 · 15 min read
中文

Supply Chain Action Points

Read this first — the conclusion, and the moves to make:

  1. Pull your actual fuel-surcharge clause by Wed Sep 23 and confirm whether it resets weekly or monthly on the EIA retail index, with or without a cap or floor.
  2. Ask your broker their carrier payment terms and whether capacity is dropping on your lanes; line up a backup carrier this week if they hedge or go quiet.
  3. Request a capped or frozen fuel surcharge for your top 3 steady lanes before the next EIA print (week of Sep 28), even at a slightly higher base rate.
  4. Pre-book reefer ($2.20-2.80/mi) and flatbed ($2.40-3.10/mi) loads and confirm the fuel line in the same call; do not assume dry-van softness applies.
  5. Move your highest-volume lane from 60- to 45-day payment terms by Sep 30 and measure service; on $40k/week that reclaims about $171k of broker float.
  6. Track diesel weekly; set $4.40/gal as the re-quote trigger for open lanes and $4.55 as the line to activate your backup carrier.
Skip to the detailed analysis ↓
Summary

The U.S. Energy Information Administration reported the national diesel average rose 3.2% this week to $4.27 per gallon, up from $4.14, while Canada's retail diesel climbed 2.8% to C$1.68 per litre. DAT and Truckstop data show dry-van spot rates at $1.80–$2.40 per mile, reefer at $2.20–$2.80 and flatbed at $2.40–$3.10, with capacity up 2–3% week-on-week. Top-tier brokers on Loadlink and DAT are cutting payment terms from 45 to 30 days, though 22% still use 60-day terms, squeezing owner-operators' cash flow.

The Analysis

Diesel just jumped again, and it landed on a week when I was already watching truck rates creep up. The US national average hit $4.27 a gallon this week, up 3.2% from $4.14, and Canada retail diesel went to C$1.68 a litre, up 2.8%.

What caught my eye more than the headline number is the combination: spot rates are holding while capacity loosens 2 to 3% week-on-week, which is not the pattern you usually cheer about.

The part most importers will feel without seeing it coming is the broker-side payment-terms squeeze, and that is where I want to spend the next few minutes.

Let me be honest about a load I ate a few years back, because it is the same movie playing now. I had a frozen food lane locked at a clean number, felt good about the margin, and never opened the fuel clause past the summary. Diesel ran up over six weeks, the carrier re-papered the surcharge on the weekly index, and by the time the customer got the invoice the lane was underwater. The customer did not care that the index moved; he cared that my quote was wrong. I learned to read the fuel line before the base rate, and weeks like this one are exactly why.

From my own experience running cross-border loads, the diesel number is the one that quietly wrecks a margin. People fixate on the linehaul rate because that is what shows up in the quote, but the fuel surcharge is where the diesel move actually hits you, and it moves faster than anyone plans for. I have been on the receiving end of this more than once: a customer signs a rate, we lock the lane, and two weeks later the carrier re-papers the fuel line because the EIA index ticked. The shipper sees a number he did not agree to, the broker eats the gap or passes it through, and someone's relationship gets a dent. That is the reality of a 3.2% diesel jump in a single week, and it is worth sitting with before you shrug it off as noise.

Let me put the week's numbers on the table so we are all looking at the same thing. US EIA says the national retail diesel average is now $4.27 a gallon, up from $4.14, a 3.2% move. Canada retail diesel went to C$1.68 a litre, up 2.8%. On the spot side, DAT and Truckstop are showing dry van at $1.80 to $2.40 a mile, reefer at $2.20 to $2.80, flatbed at $2.40 to $3.10. Capacity, measured by available trucks posting on those boards, is up 2 to 3% week-on-week. And then the kicker for the smaller carriers: the big brokers on Loadlink and DAT are pulling payment terms in from 45 days to 30, while 22% of the market is still sitting on 60-day terms. That last line is the one I want to sit with, because it is the one that breaks owner-operators, and broken owner-operators are how a cheap lane quietly turns into a missed pickup.

Here is the part that matters for an importer or exporter. When diesel goes up 3.2% in a week, your total cost does not go up 3.2%. It goes up by the diesel share of your transportation cost, and that share is bigger than most people estimate because the fuel surcharge is usually indexed and passes through close to dollar-for-dollar. On a typical truckload the fuel component can run 20 to 25% of the all-in rate once you include the surcharge line. So a 3.2% move on the diesel index, applied to that share, is roughly 0.6 to 0.8% added to your total door-to-door truck cost. On a lane where you are paying, say, $3,000 all-in, that is about $18 to $24 more per load, and it shows up whether or not your base rate is frozen. The base rate is the part you see on the quote. The fuel line is the part that actually moves your landed cost.

Let me do the math out loud so nobody has to trust my gut. Take a 1,200-mile full truckload at a $2.40-a-mile linehaul. That is $2,880 of linehaul. Now assume the carrier prices fuel surcharge at $0.55 a mile on this lane, which is about 23% of the linehaul and sits in the normal range for a diesel index around $4.14. That puts the fuel line at $660 per load before this week's move. Diesel rose 3.2%, and the fuel surcharge is indexed to diesel, so the surcharge rises 3.2% too: $660 times 0.032 is about $21.12 extra per load. If you run twenty of these loads a week, that is roughly $422 a week, call it $1,690 a month, that just walked into your freight invoice without a single conversation. Nobody renegotiated. The index did it, and the index does not send you a heads-up.

Now stack the capacity number on top. Capacity is up 2 to 3% week-on-week, which sounds like good news for a shipper because more trucks usually means softer rates. But the rates quoted above have not softened; dry van is still $1.80 to $2.40, reefer $2.20 to $2.80, flatbed $2.40 to $3.10. When capacity loosens and rates hold, that is the carrier side telling you they are protecting the line against fuel and against their own financing cost. I read that as: do not expect the rate card to fall just because there are a few more trucks posting. The savings, if any, will come from how you buy, not from the market handing it to you. A looser market is a better time to negotiate, not a reason to assume the price dropped.

The Canada angle is worth its own sentence because cross-border shippers feel both sides. Retail diesel there went to C$1.68 a litre, up 2.8%. If you are moving goods into or out of Canada, your cross-border leg now carries a higher fuel base on both sides of the line, and the exchange rate between the US dollar and the Canadian dollar decides which side stings more. I have seen importers get comfortable because the US side looked flat, then eat the difference on the Canadian leg where the surcharge was indexed to a local pump price they never checked. Pull both clauses, not just the one you remember.

The real landmine is the payment-terms shift. Brokers moving from 45 to 30 days, with 22% still at 60, is a cash-flow story that lands on the smallest carriers first. An owner-operator running one or two trucks cannot fund 30 or 45 or 60 days of fuel and payroll on his own balance sheet. When the broker stretches terms, the carrier finances the broker's receivables out of pocket. That is why you see good trucks quietly disappear from a lane: the operator took a load he could get paid for in seven days over a lane that pays more but in sixty. For an importer, the trap is thinking your rate is safe because the market is loose. If your broker is bleeding carriers out the back door because of terms, your cheap lane gets thin, and thin lanes turn into missed pickups the week your container clears and you actually need the truck.

Let me run the cash example the other way, from your side. Say you are a mid-size importer moving $40,000 a week in truckload freight and you pay your broker on 60-day terms while the broker is now expected to pay carriers in 30. The broker is carrying thirty days of your freight spend as working capital: $40,000 times roughly four and a third weeks is about $171,000 sitting in his books that he is effectively lending you. Now the broker wants that down to 30 days because his own funders are nervous. If you hold at 60, you are the reason a carrier gets squeezed, and the broker either reprices your lane or quietly de-prioritizes your loads. If you move to 30 days, you free up $171,000 of someone else's capital but you tie up your own float. There is no free lunch; the question is who carries the cost and whether it is visible on your invoice or hidden in a truck that never showed.

So what do you actually do this week. Start with the fuel-surcharge clause in front of you. I mean the actual clause, not the summary in the email. Read how the surcharge is indexed: is it the EIA retail average, is it published weekly or monthly, is there a cap or a floor, and does it move with the national number or a regional one. A surprising number of shippers have never seen their own fuel clause and could not tell you if they are on a weekly or monthly reset. If your clause resets monthly, this week's 3.2% does not hit you until the next reset, and that lag is either a small gift or a small trap depending on which way diesel moves next. Know which one you are holding.

Then talk to your broker about the terms. Not to lecture him, to find out where he is. If your broker is on 30-day pay to carriers and you are on 60-day pay to the broker, you are the squeeze point. Ask directly: what are your carrier payment terms, and are you seeing capacity drop on my lanes. You are not prying; you are checking whether your lane is about to get thin. If he hedges or goes quiet, that is your signal to line up a second carrier before you need one, because by the time you need one the good trucks are already on someone else's 7-day load.

While you are at it, lock what you can before the next diesel print. If you have steady lanes, ask for a fuel-surcharge cap or a fixed surcharge for a defined window, even if it costs a little more on the base. A capped surcharge is a known number you can quote to your customer; an open surcharge is a surprise every reset. I have taken a slightly higher base rate in exchange for a frozen fuel line more times than I can count, and it has saved a margin in exactly weeks like this one. The customer cares about the total he can put in his budget, not which line on the invoice moved.

Keep a separate eye on the reefer and flatbed lanes specifically. Reefer at $2.20 to $2.80 and flatbed at $2.40 to $3.10 are the tighter bands, and those are the loads where a capacity wobble bites first because there are fewer trucks that qualify. If you are moving cold chain or oversized, do not assume the dry-van softness extends to you. Pre-book those, confirm the truck, and confirm the fuel line in the same call. The mistake is booking the truck at the soft rate and finding the fuel line rebuilt two weeks later when the perishable is already on the dock.

Another move, if you can, is to build a tiny cash cushion into your own terms. If moving from 60 to 45 or 30 days frees broker capacity for you and you can stomach the float, do it on your highest-volume lane first and watch whether service improves. Quantify it: on $40,000 a week, every thirty days you give up is about $171,000 of float you reclaim from the broker's books. If service holds or improves, that float buy was cheap. If it does not, you have learned something about your broker without a catastrophe, and you can walk it back.

And set triggers instead of waiting for the invoice to surprise you. I like a hard number: if diesel prints $4.40 a gallon, re-quote your open lanes that week. If it prints $4.55, that is the line where I activate the backup carrier I lined up in step two. Triggers take the emotion out of it. You are not guessing whether this is a trend; the number tells you, and you have already decided what to do when it arrives.

One more thing on lead time, because cost is only half the story. When brokers tighten terms and carriers thin out, the first thing that slips is not the rate, it is the pickup window. A load that used to be covered in a day starts taking two, and a two-day pickup on a container whose demurrage clock is already running is how a cheap truck becomes an expensive one. I tell my own customers to pad the pickup buffer by a day on any lane where the broker is on 30-day terms and the carrier base is mostly one-truck operators. The buffer costs you nothing on a good week and saves a demurrage bill on a bad one.

On the customer-communication side, do not wait for the invoice to explain the move. If you have a fuel clause that resets and you know diesel jumped, tell your customer the lane may move at the next reset and give them the number. A customer who hears it from you, with the EIA print attached, treats it as the cost of doing business. A customer who sees it land on the invoice with no warning treats it as a trust problem. The same dollar, two completely different relationships, and the only difference is a five-line email you could have sent this week.

Region matters more than the national average suggests. The EIA number is a US average; California and the Northeast often run well above it, and if your lanes run through those corridors the $4.27 print understates what your carrier is actually paying at the pump. When you read your fuel clause, check whether it is the national average or a regional index, because that choice decides whether your surcharge tracks the headline or the pump your truck is actually filling. I have seen a shipper budget off the national number and then get a surcharge built off a regional one thirty cents higher, and the gap was real money by the end of the quarter.

About the 22% still on 60-day terms: do not read that as good news. Those are the brokers who have not been forced to move yet, which usually means they are either well-funded, leaning on a factor, or riding the float on shipper money the way the 30-day brokers used to. The risk for you is concentration: if your freight is sitting with a broker on 60-day carrier terms, his carriers are the most squeezed in the market, and the week fuel spikes is exactly when they walk. Spread your lanes across two or three brokers so no single terms policy can strand your whole week. Diversification here is not a procurement theory; it is a pickup insurance.

The hedging option is real if your volume is steady. Some carriers will write you a fixed fuel surcharge for a quarter in exchange for a volume commit, and that is worth a conversation if you move the same lanes every week. The commit is the price: they want a floor, you get a ceiling, and the index risk moves to them. For a shipper with predictable volume this is often cheaper than riding the open index through a run like the one we are in, because you are not paying the carrier to be right about the direction of diesel. You are paying for a number you can plan around.

Finally, watch your own payment discipline as a signal. If you are the shipper who pays in 30 while your broker pays carriers in 30, you are part of the solution and carriers will remember it when lanes tighten. If you pay in 60, you are part of the squeeze, and the market has a long memory for who funded its fuel. I am not saying stretch your own cash to be nice; I am saying know which side of that line you are on, because it shows up in coverage when you need it most. The truck that takes your load on a tight week is often the one whose operator got paid without a fight the week before.

Let me close with the practical picture. Diesel at $4.27 is not a crisis by itself; it is a nudge that, combined with 2 to 3% more capacity that is not softening rates and brokers pulling terms in, tells me the next four to six weeks favor the carrier on service and the shipper on price only if the shipper buys smart. Pull your fuel clause, learn your broker's terms, cap what you can, pre-book the tight lanes, reclaim a little float where it buys service, and set your triggers. Do that this week, not next, because the next diesel print lands whether your paperwork is ready or not, and the carriers who got paid in seven days will be the ones still taking your call.

-- Leo

↑ Back to the key points

— By Leo