Londonderry, N.H. (Nov. 9, 2023) — DDA Transport introduced six propane-fueled straight trucks to its fleet, joining a growing number of USPS mail contractors that trust propane vehicles to reliably deliver the mail across the country.

“​​As a supplier to the U.S. Postal Service, we are continually striving to find ways to protect the environment through sustainability efforts,” said Dwayne Andreasen, president of DDA Transport. “Our fuel consumption is our biggest environmental concern, so the ability to lower this impact through propane autogas helps us achieve our short- and long-term goals.”

With a fleet of over 160 vehicles, DDA Transport recognized the importance of reducing its carbon footprint, but needed a solution that wouldn't burden them with infrastructure constraints or costly maintenance.


“Propane seemed to check all the boxes that we were searching for,” said Andreasen. The new Ford trucks are powered by ROUSH CleanTech’s propane technology.

Propane autogas — the leading alternative fuel across the globe — is a nontoxic, non-carcinogenic and non-corrosive fuel. It is made domestically, making the fuel readily abundant and cost-effective for fleet operators in the United States.

“Propane offers a readily available, affordable and uncomplicated solution to reduce emissions,” said Todd Mouw, executive vice president at ROUSH CleanTech. All ROUSH CleanTech propane products are certified to the ultra-low NOx level of 0.02/bhp-hr, making them 90% cleaner than the strictest federal emissions standard.

For fueling, the company chose to work with Ferrellgas to install an on-site propane station. “We need on-site fueling because our trucks run on very strict schedules and are typically running from the early morning hours until the late evening,” said Andreasen. “Ferrellgas not only provided the fuel but also worked out a cost-effective solution by incorporating a fueling station into a long-term fuel contract.”

DDA Transport’s delivery trucks travel 75,000 miles and 90,000 miles per year. Thus far, the drivers have praised the propane trucks for their smooth ride and quieter operation. “Operating in New England with frigid winters, we are looking forward to our propane trucks starting and running in the cold without fuel gel issues,” said Andreasen.

The company’s goal is to achieve a 50/50 mix between diesel and propane autogas within the next few years.