Why FleetAero

Reduced Fuel Costs

On average, fuel makes up 21% of a trucking company’s operating costs, coming in second only to driver salaries and benefits. And what accounts for more than half of a fleet’s fuel consumption? Aerodynamic drag.

Reducing that drag has been the motivation behind all of FleetAero’s product development efforts. It is the quickest and most cost-effective way to reduce fuel consumption, increase profitability, and decrease a fleet’s carbon footprint.


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Independent tests have shown that the combined installation of TrailerBlade™, ECOFLAPS, and Rocketail™ can result in a composite score of up to 9.98% in fuel savings. That can mean a per trailer savings of as much as $4,316 per year.*

9.98 %

*Cost savings based on 100,000 highway miles driven annually at 7 MPG and $4.00/gallon.

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TrailerBlade™ alone has proven fuel savings of greater than 7.15% at highway speeds in strict accordance with EPA testing guidelines. Not only did the TrailerBlade™ pass the SmartWay® certification requirement for an Advanced Side Skirt, it conclusively exceeded the certification requirement.

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The advanced vented design of ECOFLAPS helps reduce fuel consumption by 1%, typically saving 100 gallons of diesel fuel per year.

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Rocketail™ is SmartWay®-verified and CARB-approved for GHG2 and shown to reduce rear-end drag on trailers by 3.36%.

How Delta CdA is Calculated

At highway speed, aerodynamic drag accounts for more than half of your fleet’s fuel consumption. Reducing drag is the quickest and most cost-effective way to reduce both your fleet’s fuel consumption and carbon footprint.

The GHG2 standard established by the EPA requires devices to be tested to a uniform standard of drag reduction. They are classified on the amount of drag area they reduce (expressed in square meters). The effectiveness of aerodynamic devices is then measured in terms of how much of this drag area they remove or Delta CdA. Once the baseline drag and drag reduction amounts are known, fuel savings can be calculated.

For example, if a device has a .40 Delta CdA, it removes .40 square meters of drag area from the tractor-trailer combination, and is designated as a Bin III.

If a trailer's measured Delta CdA isDesignate the trailer asUse this value for the Delta CdA
≤0.09Bin I0.0
0.10—0.39Bin II0.1
0.40—0.69Bin III0.4
0.70—0.99Bin IV0.7
1.00—1.39Bin V1.0
1.40—1.79Bin VI1.4
>1.80Bin VII1.8

Delta to Dollars Calculator

Refer to the chart above for a CdA value, and enter your
fleet’s information below:

Our model is based on the 2015 Canadian NRC Report: “Improving the Aerodynamic Efficiency of Heavy Duty Vehicles”, 2015, p.19. These numbers are only a guide. You should derive your own conclusions based on your specific fleet’s data.

Savings Over Years
Annual Savings at Various Fuel Costs