Propane-Fueled USPS Trucks by DDA: Eco & Cost Benefits

DDA Transport, a contractor for the United States Postal Service (USPS), has recently taken a significant step towards sustainability by introducing six propane-fueled straight trucks into its fleet. This initiative is part of the company’s broader effort to reduce its carbon footprint while circumventing the infrastructure challenges often associated with hydrogen and full-battery electric solutions.

Environmental and Operational Benefits

Reduced Carbon Footprint

Propane, as a fuel choice, has been instrumental for DDA Transport in lowering its environmental impact. As noted by the company’s president, Dwayne Andreasen, the shift to propane autogas aligns with their short- and long-term environmental goals, particularly in reducing fuel consumption, their most substantial environmental concern.

Cost Savings and Maintenance Efficiency

The transition to propane is also financially beneficial. DDA Transport anticipates saving approximately $25,000 per truck annually in fuel expenses and an additional $15,000 in maintenance and uptime costs compared to their diesel counterparts. These savings are substantial, considering the extensive mileage—between 75,000 and 90,000 miles per year—covered by the trucks.

Future Plans and Industry Implications

Expanding Propane Fleet

The cost savings are not just an end but a means for DDA Transport. The company plans to reinvest these savings into further expanding its propane vehicle fleet, aiming for a 50/50 mix between diesel and propane autogas within the next few years.

Broader Impact

This move by DDA Transport could set a precedent in the logistics and postal service industry, showcasing a practical, environmentally friendly, and cost-effective approach to fleet management.

Technical and Infrastructure Aspects

Propane Autogas Characteristics

Propane autogas, a domestically produced fuel, is noted for being nontoxic, non-carcinogenic, and non-corrosive. It’s lauded as an affordable and uncomplicated solution for reducing emissions. ROUSH CleanTech, the provider of the propane technology for DDA Transport, states that their propane products meet ultra-low NOx levels, making them substantially cleaner than the strictest federal emissions standards.

Onsite Propane Station

To support the new fleet, DDA Transport collaborated with Ferrellgas to install an onsite propane station. This development ensures efficient fueling aligned with the strict schedules of the delivery trucks.

Driver Experience and Performance in Harsh Conditions

Enhanced Driving Experience

Drivers have reported a smoother and quieter operation with the propane trucks, which is significant for overall driver satisfaction and performance.

Performance in Cold Weather

A notable advantage of propane trucks is their reliable performance in cold conditions. This is particularly beneficial for operations in New England, where winters are frigid, and diesel trucks often face fuel gel issues.

Conclusion and Looking Forward

DDA Transport’s decision to introduce propane-fueled trucks into its fleet represents a forward-thinking approach in the logistics sector. This move not only addresses environmental concerns but also offers operational efficiency and cost-effectiveness, potentially influencing broader industry trends towards sustainable practices.


  • MoparProud

    MoparProud brings a rich background in automotive mechanics to the Truckguider team. With over 20 years of hands-on experience, he is an expert in engine mechanics, particularly the 5.7 Hemi and 6.7 Cummins engines. His insights have also made valuable contributions to forums like Cummins Forum, solidifying his reputation in the automotive community.

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