Automotive Fleet
MenuMENU
SearchSEARCH

CleanFUEL USA Partners with Freightliner on New Propane Engine

GEORGETOWN, TEXAS - CleanFUEL USA, a supplier of alternative-fuel infrastructure and propane engine systems, announced a partnership to build and certify a multi-purpose 8.0L General Motors (GM) propane engine with Freightliner Custom Chassis Corporation (FCCC).

by Staff
November 17, 2010
3 min to read


GEORGETOWN, TEXAS - CleanFUEL USA, a supplier of alternative-fuel infrastructure and propane engine systems, announced a partnership to build and certify a multi-purpose 8.0L General Motors (GM) propane engine with Freightliner Custom Chassis Corporation (FCCC), a subsidiary of Daimler Trucks North America.  Featuring CleanFUEL's new 8L liquid propane injection (LPI) system the medium-duty engine will offer fleet managers a high-performance, propane-powered alternative to reduce fleet operating costs and greenhouse-gas (GHG) emissions.  First versions of the engine chassis will be designed for use in urban delivery trucks and school buses. 

Propane is the most widely used alternative fuel today, powering more than 14 million vehicles around the world.  CleanFUEL anticipates significant market interest in the 8L engine, with pent up demand lingering from GM stopping production of medium-duty engines in 2009. CleanFUEL expects the engine to be available for 2012 vehicles, providing a viable option for fleet operators to keep pace with stricter GHG legislation.  

Ad Loading...

"We've seen an industry-wide shift to becoming more environmentally conscious, and our customers are requesting more options for green-fleet vehicles," said Jonathan Randall, director of sales and marketing for FCCC. "Working with CleanFUEL to address the demand for green vehicles was a natural fit.  We look forward to collaborating on this project and keeping with our legacy of providing innovative technologies that benefit customers and the environment."

Freightliner will certify CleanFUEL's 8L propane fuel injection system to run on the Thomas Built Type C school bus and Freightliner straight truck chassis.  This partnership expands use of GM's 8L long-block engine, originally intended for industrial and marine markets, to new on-highway applications of up to 33,000 lb. GVW (gross vehicle weight).  Conversion kits also will be available to switch medium-duty gasoline vehicles to run on propane.    

The Propane Education and Research Council (PERC) approved a $3.9 million grant to support the project's development. CleanFUEL, FCCC, GM and Powertrain Integration will co-fund the project and release a generator version of the engine for the agriculture market, where propane equipment currently supports 865,000 U.S. farms (e.g. irrigation pumps, grain dryers, standby generators, etc.).

"Since the discontinuance of the GM 8.1 liter engine there have been limited options for medium-duty propane engines," said Tucker Perkins, President and COO, CleanFUEL USA.  "Demand for medium-duty propane engines still persists.  From a fleet standpoint, we see immense potential for this new 8L platform to stimulate additional interest and adoption in the market for propane-powered vehicles." 

Medium- and heavy-duty vehicles (MHDVs) in the U.S. consume a significant and increasing amount of fuel. In 2008, these vehicles consumed 26 percent of all U.S. transportation fuels and despite rising fuel prices, use of liquid fuels in the transportation sector are expected to increase to roughly 45 percent overall from 2007 to 2035 (Source: Energy Information Administration).  The Obama administration recently announced new rules to reduce GHG emissions and other pollutants by requiring greater fuel efficiency for fleet vehicles, starting with 2014 models. According to the EPA, the new regulations would save the trucking industry about 500 million barrels of oil over the life of vehicles made between 2014 and 2018, and reduce greenhouse gas emissions by nearly 250 million metric tons. 

Ad Loading...

Propane is a clean burning fuel that yields 87 percent less hydrocarbons and 50 percent fewer toxins than gasoline, and is more economical compared to petroleum-based options, roughly 40 to 50 percent less than gasoline/diesel per gallon.  PERC estimates that operating costs of a propane fleet typically range from five to 30 percent less than a gasoline-powered fleet.  Propane is also an approved alternative fuel under the Energy Policy Act of 1992 and qualifies for several alternative fuel vehicle tax incentives

More Green Fleet

Sketch of chassis cab truck.
Green Fleetby Chris BrownMarch 9, 2026

Startup ZMD Motors Developing Electric Conversion for Ram 5500 Work Trucks

Detroit-based company says it has begun early development of a system to convert internal combustion Ram 5500 chassis-cab trucks to electric power.

Read More →
SponsoredFebruary 26, 2026

MOVING ON FROM DEBATE: A Guide for Fleet Managers Who Just Want To Get Electrification Done

Fleet managers are done with the debate—and focused on execution. Learn how to build a practical electrification strategy that aligns infrastructure, operations, and financing while keeping costs controlled and deployment scalable with support from Blink Charging. Discover how smart planning today positions fleets for long-term performance and ROI.

Read More →
EV charging symbol
Green Fleetby Chris BrownFebruary 12, 2026

U.S. EV Adoption Is Climbing, but Commercial and Passenger Markets Diverge

New industry group data revealed that light-duty electric vehicle sales are hitting record market share and volumes, while commercial EV volume dipped. What’s driving the fluctuations?

Read More →
Ad Loading...
SponsoredFebruary 6, 2026

Hybrids: Electrification Without the Challenges

For fleet managers, fuel is one of the biggest line items in the budget — and it's one hybrids can shrink without changing how your people work. Download the eBook to see the numbers, understand the technology, and get a step-by-step guide to making the switch.

Read More →
A side view of the yellow, blue, and red Slate Auto electric pick-up truck and SUV
Upfittingby Martin RomjueDecember 8, 2025

How To Upfit Electric Work Trucks and Vans

The biggest challenge lies in balancing additional equipment and accessories with EV battery capacity and range.

Read More →
Green Fleetby Martin RomjueDecember 4, 2025

How Fleets Can Adjust Approaches To EV Adoption

With the expiration of federal incentives, EV success now hinges less on government policy and more on discounts, battery tech progress, increased range, and broader infrastructure.

Read More →
Ad Loading...
Panelists on stage at FFC.
Fleet Forwardby Martin RomjueOctober 29, 2025

Despite World Troubles, Forward Thinking Guides Fleets

Fleet operators shared their challenges during an annual conference that embraced the latest advances across all aspects of running private- and public-sector vehicles.

Read More →
Illustration of GM Energy’s vehicle-to-home system showing an electric truck connected to home power storage, the grid, and GM Energy Cloud through the myOwner app.
Green Fleetby News/Media ReleaseOctober 28, 2025

GM Energy Details Partnerships and Targets for Public Charging Build-Out

EVgo, Pilot, ChargePoint and IONNA named; goal is 35k GM-invested DC stalls by 2030, with customer-experience upgrades at sites.

Read More →
Chart showing September 2025 EV sales. New EV sales totaled 147,716 units, up 44% year over year, and used EV sales hit 40,569 units, up 76%, marking strong third-quarter performance.
Green Fleetby News/Media ReleaseOctober 23, 2025

Q3 Electric Vehicles Sales Hit Record High

EV buyers took advantage of the final federal tax credit days, while average prices edged up for new EVs and continued to decline for used models.

Read More →
Ad Loading...
A green vertical bar graph chart showing the rises and dips in quarterly EV sales since early 2022.
Green Fleetby News/Media ReleaseOctober 10, 2025

EV Sales Hit Record in Q3 Before Incentives Expire

But most OEMs record low-volume sales, which means EV profitability remains a distant dream for nearly every automaker.

Read More →