Diesel Tops $6: What Record Fuel Prices Mean for Shippers and Trucking

Diesel fuel is one of the largest operating expenses in trucking, so when prices surge, the impact reaches far beyond the fuel pump.  A sharp increase in diesel prices can affect everything from carrier operating costs and freight rates to capacity, routing decisions and the final price consumers pay for goods.

With the U.S. average diesel price recently surpassing $6 per gallon, shippers and transportation providers are facing another challenging variable in an already complex freight environment.

For companies moving full truckload, LTL, temperature-sensitive, hazmat or high-value freight, understanding how fuel prices influence transportation decisions is critical.  The lowest freight quote isn't necessarily the lowest-cost transportation solution when reliability, capacity, service and risk are factored into the equation.

Why Diesel Prices Matter So Much to Trucking

Unlike many industries, trucking cannot simply reduce fuel consumption when prices rise.  Trucks have to move.

Whether a carrier is transporting food from a manufacturing facility, chemicals to a distribution center, pharmaceuticals to a healthcare facility or general freight across the Northeast, diesel is essential to completing the shipment.

A tractor traveling hundreds or thousands of miles can consume hundreds of gallons of fuel during a single trip.  Multiply that by a fleet operating hundreds of trucks, and even a relatively small increase in the price of diesel can translate into a significant increase in operating expenses.

When diesel rises above $6 per gallon, the difference becomes particularly noticeable.  For example, consider a truck that travels approximately 2,000 miles at 7 miles per gallon.  That trip requires roughly 286 gallons of diesel.

• At $4 per gallon: approximately $1,143 in fuel
• At $5 per gallon: approximately $1,429
• At $6 per gallon: approximately $1,714

That's nearly $570 more in fuel than the same trip at $4 per gallon—before considering labor, maintenance, insurance, equipment, tolls and other operating expenses.

For carriers operating thousands of loads each month, those differences add up quickly.

How Higher Fuel Prices Affect Freight Rates

Fuel doesn't necessarily increase the underlying linehaul rate dollar-for-dollar.  Instead, many transportation contracts separate the carrier's base transportation rate from a fuel surcharge.

The fuel surcharge is designed to help carriers and shippers account for fluctuations in fuel costs.  When diesel prices rise, the surcharge generally increases according to the methodology established in the carrier's contract or pricing agreement.  This structure provides an important benefit: it creates greater transparency around what portion of transportation pricing is being driven by fuel.

However, fuel is only one component of the total cost of moving freight.  A carrier still has to account for:

• Driver wages
• Equipment payments
• Maintenance and repairs
• Tires
• Insurance
• Tolls
• Registration and regulatory expenses
• Dispatch and administrative costs
• Deadhead miles
• Terminal operations
• Loading and unloading delays

That's why comparing transportation providers strictly on their quoted linehaul rate can be misleading.

The Cheapest Rate May Not Be the Cheapest Shipment

When transportation budgets are under pressure, it is understandable that shippers look for ways to reduce freight costs.  But choosing a carrier based solely on the lowest rate can create additional expenses later.

A low-cost carrier that experiences equipment problems, misses an appointment or has insufficient capacity can create costs that aren't reflected on the original quote.

Consider what happens when a shipment doesn't arrive as planned.  A missed delivery could result in:

• Production delays
• Warehouse labor costs
• Retail stockouts
• Expedited replacement shipments
• Customer service issues
• Contract penalties
• Spoilage for temperature-sensitive products
• Additional storage charges
• Lost sales

For pharmaceutical, food, chemical and other sensitive shipments, the financial consequences can be considerably greater.  Transportation should be evaluated based on total cost and risk—not simply the number at the bottom of the quote.

Fuel Prices Can Influence Capacity

Fuel prices can also affect the number of trucks available to shippers.  When operating costs increase significantly, carriers have to evaluate which freight is economically viable to haul.  A carrier may reconsider:

• Long-distance lanes
• Low-paying freight
• Loads with excessive detention
• Routes with significant deadhead
• Difficult pickup or delivery locations
• Freight requiring additional stops

This can have a ripple effect throughout the market.

If carriers reduce their exposure to certain lanes, shippers may find fewer transportation options available.  Less available capacity can eventually put additional upward pressure on freight rates.  This is particularly important for companies that need dependable capacity rather than simply finding a truck for a single shipment.

Routing Becomes Even More Important

Higher diesel prices also make routing decisions more significant.  The shortest route isn't always the most economical route.  Carriers must consider the entire operating picture, including:

Miles + Fuel + Tolls + Traffic + Driver Hours + Equipment + Delivery Requirements

A route that saves 50 miles but adds significant tolls or congestion may not actually reduce transportation costs.  Likewise, a slightly longer route could make financial sense if it provides better traffic flow, fewer delays or improved utilization of the truck.

For shippers, this reinforces the value of working with transportation providers that actively manage routing rather than treating every shipment as a simple point-A-to-point-B transaction.

Empty Miles Are More Expensive When Diesel Costs $6

One of the most overlooked factors in trucking economics is deadhead mileage—the miles a truck travels without freight.  A truck that delivers a load and then travels hundreds of miles to find its next shipment is still consuming fuel.  At lower fuel prices, those empty miles are expensive.  At $6-plus diesel prices, they become even more costly.

Asset-based carriers can have an advantage here because they control their own equipment and can strategically position trucks around their network.

For shippers, this can translate into more predictable capacity and potentially more efficient transportation planning.

Temperature-Controlled Freight Faces Additional Pressure

Fuel prices can be especially important for refrigerated transportation.  A reefer doesn't just use fuel to move the tractor down the highway.  The refrigeration unit also requires energy to maintain the required temperature inside the trailer.  That means fuel costs can influence the economics of moving:

• Food and beverages
• Pharmaceuticals
• Biologics
• Certain chemicals
• Cosmetics
• Other temperature-sensitive products

But fuel isn't the only consideration.

When a temperature-sensitive shipment is involved, protecting the product is paramount.

A cheaper transportation option isn't a bargain if the product arrives outside its required temperature range.

Fuel Efficiency Is More Than MPG

Carriers can respond to higher diesel prices through better fuel management.  Modern fleets can use technology and operational strategies to monitor:

• Fuel consumption
• Idle time
• Driver performance
• Route efficiency
• Excessive mileage
• Vehicle utilization
• Maintenance requirements

Proper equipment maintenance also matters.  Underinflated tires, poorly maintained engines and unnecessary idling can all increase fuel consumption.  Even small efficiency improvements become more meaningful when diesel costs $6 or more per gallon.

What Should Shippers Do?

Shippers can't control the price of diesel, but they can control how they respond to it.

1. Understand Your Fuel Surcharge

Make sure you understand how your carrier calculates its fuel surcharge and what fuel-price index is being used.  Ask questions if the methodology isn't clear.

2. Look at Total Transportation Cost

Don't evaluate carriers solely on linehaul.

Consider:

Linehaul + Fuel + Accessorials + Reliability + Risk + Service

The carrier with the lowest initial quote may not produce the lowest overall transportation cost.

3. Improve Shipment Planning

Better planning can reduce unnecessary miles and improve truck utilization.  Consolidating compatible shipments, improving appointment scheduling and reducing detention can all help control transportation expenses.

4. Work With a Carrier That Understands Your Freight

Different commodities have different transportation requirements.  Food, chemicals, pharmaceuticals, high-security freight and general commodities shouldn't necessarily be managed the same way.

The transportation provider should understand the risks associated with the product—not simply the distance it needs to travel.

5. Don't Sacrifice Service to Save a Few Dollars

A reliable carrier can be particularly valuable during periods of elevated operating costs.  Consistent communication, dependable equipment and strong execution can prevent the secondary costs associated with transportation failures.

Why Asset-Based Transportation Matters

When the transportation market becomes more volatile, the difference between an asset-based carrier and a transportation provider that relies primarily on outside capacity can become increasingly important.

An asset-based carrier owns and operates its equipment and employs the drivers moving the freight.  That gives the carrier greater control over:

• Equipment availability
• Driver operations
• Service standards
• Shipment visibility
• Safety procedures
• Scheduling
• Capacity planning

For shippers, that control can provide an additional layer of consistency when transportation costs and capacity are changing.

The Bottom Line for Shippers

Record or elevated diesel prices are more than a trucking problem.  They are a supply chain problem.  Higher fuel costs can influence freight rates, fuel surcharges, carrier capacity, routing decisions and ultimately the cost of getting products to customers.  But fuel is only one piece of the transportation equation.

For shippers, the goal shouldn't simply be to find the lowest freight rate.  The goal should be to find the right transportation value—a combination of competitive pricing, dependable capacity, experienced drivers, quality equipment, communication and consistent service.

At Road Scholar Transport, our asset-based transportation operation gives shippers access to company-controlled equipment and drivers while providing the service and communication needed to keep freight moving.

When fuel prices rise, transportation decisions matter even more.  The right carrier can help shippers manage costs without sacrificing the reliability their supply chains depend on.