Reefer Rates Per Mile and the True Cost of Running Cold

Temperature-controlled freight pays a premium over dry van because it demands more from the carrier. Your reefer unit runs around the clock. It needs fuel, maintenance, and attention. Produce loads have tight delivery windows. If your reefer fails en route, you're looking at cargo claims. The premium is real, but so are the costs and the liability. Understanding both is what separates carriers who profit from reefer from those who break even while working harder.

What the market pays for reefer

Reefer spot rates nationally have historically run $0.15 to $0.40 per mile above dry van on comparable lanes, per DAT historical averages. The premium varies by lane, season, and commodity. Strong produce lanes out of California, Florida, and the Pacific Northwest can command higher premiums during harvest seasons. Always check current rates on DAT or Truckstop before negotiating, because spot market conditions move quickly and the premium over van isn't constant.

The additional costs of running a reefer

Reefer fuel

Your refrigeration unit has its own engine and burns diesel independently of your truck. Consumption varies by ambient temperature, setpoint, and unit efficiency, but a typical reefer unit burns 0.4 to 0.8 gallons of diesel per hour. At 0.6 gallons per hour running 24 hours per day, that's 14.4 gallons per day in reefer fuel alone. At $3.85 per gallon, that's $55 per day, or $1,650 per month at continuous operation. This cost exists regardless of whether you're moving or parked at the loading dock.

Reefer maintenance and repair

A reefer unit is a diesel-powered refrigeration system with compressors, condenser coils, evaporator fans, belts, and electrical components. Annual preventive maintenance runs $800 to $1,500, and major component failures (compressor, condenser coil) can cost $3,000 to $8,000 or more. Budget a monthly reserve of $300 to $600 for reefer-specific maintenance on top of your standard truck maintenance costs.

Higher equipment acquisition cost

A new 53-foot reefer trailer costs substantially more than a dry van. Used units in good mechanical condition are available, but the refrigeration unit adds significant purchase cost and maintenance complexity compared to a flat wall dry van. Your trailer financing or depreciation cost is higher, which needs to be captured in your CPM calculation.

Cargo liability exposure

If your reefer fails and the load is damaged or spoiled, you're looking at a cargo claim. Produce loads can be worth $30,000 to $100,000 or more. Your cargo insurance covers these claims, but repeated claims affect your renewal rate. The exposure is real and needs to be part of how you evaluate whether a load's rate justifies its risk.

Food safety compliance (FSMA)

The FDA Food Safety Modernization Act (FSMA) Sanitary Transportation of Human and Animal Food rule applies to most carriers hauling refrigerated food. The requirements include maintaining the required temperature, being able to document it, and keeping the trailer clean. Your reefer unit should have a data recorder that logs temperatures during transit. Shippers may request temperature download records on delivery. If you're new to reefer, review the FSMA requirements on the FDA website and ask shippers what documentation they require before your first food load.

Pre-cooling and setpoint compliance

Many shippers require the trailer to be pre-cooled to setpoint before they'll begin loading. Pre-cooling can take 30 minutes to two hours depending on how warm the trailer was and the setpoint required. Factor this into your pickup appointment planning. Showing up for a refrigerated pickup without the trailer at temperature is a common mistake that can delay loading and put your delivery appointment at risk.

Calculating your true reefer cost per mile

Your effective reefer CPM needs to include everything your dry van CPM covers plus the reefer-specific adds. A rough add-on for reefer costs: $0.20 to $0.35 per mile depending on fuel prices, equipment age, and how many miles per month you run. If your dry van CPM is $1.55 and your reefer add-on is $0.25, your reefer floor rate is $1.80 before owner pay and profit. The market premium of $0.15 to $0.40 over van rates lines up with covering those extra costs, but only if you're hauling efficiently and keeping the unit maintained.

Reefer FSC: a separate conversation

Many shippers and brokers pay a reefer fuel surcharge (RFSC) separate from the truck's diesel FSC. It's meant to cover the reefer unit's fuel cost as diesel prices change. Some pay it as a cents-per-mile add-on, others as a flat per-load amount. Verify whether a reefer FSC is included in the rate confirmation or paid separately. If it's absent from a long contract, negotiate for it. Without it, you absorb every fuel price increase on the reefer unit with no mechanism for recovery.

Is reefer right for your operation?

Reefer can be profitable for carriers who run efficiently, maintain their equipment well, and build relationships on consistent lanes. It can be a money trap for carriers who underprice the extra costs or take difficult produce lanes without understanding the delivery pressure. Run the numbers with your actual reefer fuel consumption and maintenance history before comparing it to dry van in your market.