Diesel Is Crushing Truckers Right Now: The Real Math Behind Fuel Costs

$5.97 a gallon. That's what the EIA pegged diesel at last week. An all-time record, passing the $5.81 peak from June 2022 that the industry swore was as bad as it could get.

The EIA's own forecast for this year was $3.47. Then the Strait of Hormuz got choked by Middle East tensions, distillate inventories fell 17%, and diesel ripped 53.8% from January through August. Biggest January-to-August jump in 32 years of weekly EIA data. Nobody saw it coming.

Here's what that looks like for someone actually driving a truck.

The monthly math

Say you're an owner-operator running 10,000 miles a month. Your truck gets 6.5 MPG. That's about 1,538 gallons of diesel. At $3.50 a gallon, you're paying $5,385. At $5.97, you're paying $9,183.

$3,798 more per month. Not once. Every single month. That money was going to a truck payment. Or a mortgage. Or your kid's braces. Now it's going to the pump.

Over a year, that adds up to $16,300 in extra fuel costs for one long-haul truck. And most owner-operators are running on 5-15% profit margins. You do the math on what $16,300 does to a margin that thin.

What actually eats the revenue

Fuel already takes 30-40% of gross revenue for most owner-operators. A fleet operator spends around $104,445 per truck per year on everything combined: fuel, maintenance, insurance, wages, permits. Fuel alone accounts for roughly $70,000 of that on a truck doing 80,000 miles annually.

When diesel jumps two bucks a gallon in eight months, the small guys absorb every penny of it. No bulk discount to negotiate. No hedge fund to smooth out the volatility. Just one person, one truck, one fuel receipt after another.

The fuel surcharge doesn't fix what you think it fixes

There's a thing called a fuel surcharge, and it's supposed to soften the blow. It floats on top of your freight rate, calculated from the EIA weekly diesel price minus a base peg, divided by assumed MPG. Sounds good on paper.

The problem is the base peg changes depending on which broker you're dealing with. Most assume 5-6.5 MPG. If your truck actually gets better than that, the gap between the assumed number and your real MPG is the only real profit the surcharge creates. And if the surcharge only pays on loaded miles, not all miles, you're eating the cost of every empty mile yourself. Plenty of owner-operators have looked at a big fuel surcharge on a weak line-haul rate and still come out behind.

Costs keep climbing and rates aren't keeping up

ATRI's latest report put trucking operating costs at $2.336 a mile in 2025, up 3.4% from 2024. That was before the diesel spike. The cost of running a truck has been rising faster than consumer inflation, and most carriers can't push those increases onto their customers fast enough. Some can't push them at all.

The people who feel it worst have the least room to absorb it. Owner-operators. Small fleets. The driver who quit a company job to go independent, took on a truck payment, and is now watching fuel prices turn a $2,800 load into $200 of take-home, maybe less.

Georgia tried to help. It's not enough.

Georgia passed a bill suspending its motor fuel excise tax for 60 days. That saves drivers about 37 cents a gallon going through the state. It's something. But diesel is running $2.50 above where anyone predicted it would be. Thirty-seven cents against $2.50 doesn't move the needle much.

It's not just a trucking problem

Trucking moves 72.5% of the nation's freight by weight. Every grocery store, every construction site, every hospital supply room depends on diesel fuel getting burned to move goods from point A to point B. When truckers can't afford to fill up, those costs don't vanish. They land on store shelves. On project timelines. On the next generation of drivers who look at the math and decide the job isn't worth it.

The Diesel Stimulus Package

If you're running a trucking operation and the fuel numbers are keeping you up at night, you're not the only one. Working capital can bridge the gap between what freight is paying and what diesel is costing while the market catches up. The Diesel Stimulus Package from Giggle Finance gives independent contractors and gig workers up to $15K in minutes with no minimum credit score. Apply now and keep your truck moving.