The United States is the most energy-rich nation on the planet. We pump more crude oil than any country in the history of the industry, 13.6 million barrels per day last year, according to the U.S. Energy Information Administration, an all-time record. We sit on the Permian Basin, the Eagle Ford, the Bakken, the Marcellus. We export liquefied natural gas to countries that would freeze without us.
On March 30, 2026, you were paying $5.401 per gallon for diesel, which was the national average per the EIA’s weekly retail price report. The highest national average since late 2022. A carrier running 125,000 miles a year at 6.5 miles per gallon just watched its annual fuel bill climb by more than $25,000 per truck, per year, in roughly one month.
The reason is a 21-mile chokepoint on the other side of the world. Understanding why our record oil production does not insulate us from it is the first thing you need to know before any conversation about cutting your fuel spend.
The cart and the horse
The Strait of Hormuz closure is not a crude oil problem for the United States. It is a refining problem.
When Iran stopped tanker traffic through the strait in early March 2026, it severed the route that normally carries about 20 million barrels of oil per day, roughly 20 percent of the world’s daily supply. The countries bleeding worst are Japan, South Korea, India and China, which import most of their crude through that passage. The Philippines declared a national energy emergency on March 24. Europe is staring down a diesel shortage.
We produce our own crude. That part is true and it matters, but diesel does not come out of the ground. It has to be refined, and the U.S. has not built a major new refinery since 1977. Refineries that shut down during COVID never fully came back online. The ones running are near capacity. When global oil prices spike, our refiners’ input costs go up regardless of where their crude comes from, because crude trades on a global market. Brent crude peaked at $126 a barrel during this crisis. WTI, the U.S. benchmark, moved with it.
We have the cart. We have half a horse. The crude is in the ground. The refining capacity to turn it into diesel fast enough to buffer a global shock is not there, and it cannot be built overnight. That is a structural problem we chose not to solve for decades, and right now you are paying for it at the pump.
Diesel hit $5.375 per gallon during the week of March 22-28, up $1.31 per gallon in just three weeks, according to DAT One market data. Spot rates moved up in response, dry van to $2.34 per mile, reefer to $2.75, flatbed to $2.80. Those rate increases are not keeping pace with diesel prices. The margin squeeze is real and it is going to get worse before it gets better if the Strait stays closed. Plan accordingly.
Stop overpaying at the pump before anything else
This is low-hanging fruit and most fleets are leaving it on the tree.
A 30-cent spread between two truck stops three miles apart is $45 on a 150-gallon fill. Run that across a fleet of 20 trucks refueling four times a week and you have $187,000 a year in fuel costs that have nothing to do with miles driven or loads hauled. That is just the cost of habit and convenience on the road.
Drivers choose fueling stops based on familiarity, amenities and the path of least resistance. That is understandable. A driver coming off a 600-mile day is not running price comparisons. Your job as a fleet manager is to give them the right answer automatically before they pull into an expensive location.
Motive’s fuel card program is one program that does this. It monitors real-time diesel prices at locations along the active route and alerts the driver when a cheaper option is close. If the driver is headed to a TA at $5.55 and a Love’s is three miles ahead at $5.35, the system flags it. The 20-cent difference disappears unless you build a process that catches it every single time. At $5.40 diesel, you cannot afford not to.
Fuel fraud is eating your budget
Industry estimates put fuel fraud losses at up to 10 percent of fleet fuel budgets annually. Some of that is outright theft. A lot of it is quieter: card transactions at locations that do not match where the truck actually was, fuel quantities exceeding tank capacity, purchases on routes the driver was not running.
Motive’s fraud detection links every fuel transaction to the truck’s real-time GPS location and its rated tank capacity. A purchase flagged for a location mismatch triggers an immediate alert. A quantity that exceeds tank capacity is flagged the moment it exceeds the tank capacity. These are not theoretical scenarios. They are happening in fleets today, and at $5.40 a gallon, the cost of ignoring them is high.
The program carries a $250,000 fraud protection guarantee included with a Motive subscription. That guarantee tells you something about how confident they are in the system. It also tells you something about how much fraud they are finding in the broader market.
Idle time is dead money
A diesel engine at idle burns roughly one gallon per hour. At current prices, that is $5.40 sitting in a parking lot producing nothing.
A fleet of 50 trucks idling two hours per day burns $98,550 a month in fuel that goes nowhere and earns nothing. Annualized, that is nearly $1.2 million. It is one of the most expensive and preventable costs in trucking, yet most fleets lack the data to address it at the driver level because they are not tracking it that way.
Telematics platforms, Motive, Geotab, Netradyne, and others, produce idle time reports broken down by driver, route and time of day. That data changes the conversation from a general policy to a specific one: your idle time is averaging 2.8 hours per day, the fleet average is 1.1, and at today’s fuel price, that difference is costing $147 a week. Most drivers respond to specifics. They do not respond to general policy.
For long-haul over-the-road drivers, an auxiliary power unit eliminates the argument against idling that it compromises cab comfort. A Thermo King TriPac runs $8,000 to $12,000 installed. At $5.40 diesel, it pays for itself inside a year.
Maintenance is a fuel bill, not just a repair bill
A 10-pound drop in tire pressure across all 18 tires increases fuel consumption by around 0.5 percent. That sounds small until you are buying 50,000 gallons a year. Misaligned wheels, clogged air filters, dirty injectors, worn belts pulling extra engine load, each adds fractions of a percent to your burn rate. Together, they can cost a fleet 5 to 8 percent of its fuel spend.
Telematics-based maintenance tracking catches these before they compound. A predictive maintenance alert is not just about preventing a breakdown at current diesel costs. It is directly connected to your fuel bill. Every degraded combustion event is money leaving your account.
According to ATRI’s most recent operational cost research, repair and maintenance expense per mile dropped slightly in 2024, the first decline since 2020. But ATRI also found that smaller fleets are forgoing standard maintenance during the freight recession, which means deferred maintenance costs are building. When fuel is $5.40 a gallon, a poorly maintained truck does not just cost you in repairs. It costs you every single mile it runs.
Route optimization: Miles not driven are gallons not purchased
A 20-mile detour to avoid a mountain grade saves more fuel than the extra miles cost. A reroute around 40 minutes of congestion saves both fuel and hours of service. The Garmin dezl OTR1010 integrates live traffic, topographic data and real-time fuel pricing in a unit designed for commercial vehicles. At $5.40 a gallon, saving 10 miles on a daily route saves $4.15 in fuel. Over 250 working days, that is $1,040 per driver per year, before you factor in hours-of-service implications.
The data is there. Use it.
Fuel fraud, idle waste, price shopping, maintenance degradation, and suboptimal routing. None of these are new problems. What is different now is the cost of ignoring them. At $5.40 a gallon, inefficiencies that were annoying at lower prices are now the difference between profit and loss for small and independent carriers.
The Strait of Hormuz will eventually reopen. Refining margins will normalize. This pricing spike will ease. But the operational habits and systems a fleet builds in a $5.40 environment should outlast the crisis. If you do not have real-time fraud detection, idle tracking, price optimization and maintenance-linked telematics running right now, you are leaving money on the table that you are currently handing to someone else.
Every drop counts. Right now, more than ever. Get the data working for you.
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