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FedEx Makes First LNG Foray

October 18, 2012 in Fleet Order, LNG, NGVs by Rich Piellisch  |  6 Comments

Two Kenworth T660 Tractors with ISX12 G Engines for Texas

FedEx Freight has taken delivery of two Kenworth T660 tractors, liquefied natural gas-fueled. The trucks, believed to be the first LNG vehicles for FedEx in North America, have pre-production ISX12 G natural gas engines – the new, 400-horsepower over-the-road powerplant from Cummins Westport, Inc. The ISX12 G will be available for regular sale in limited numbers in 2013.

Dallas, says a FedEx spokesman, ‘has the infrastructure in place that will support our refueling needs.’€™ The two new factory-fresh, LNG-fueled Kenworth T660 tractors for FedEx Freight are seen here at a Clean Energy Fuels station on Dillon Transport property there. Pending permitting for full public access, the Dillon Dallas station is now open to customers with Clean Energy fleet fueling cards.

The LNG-fueled T660s were shown to investors and lenders at FedEx headquarters in Memphis on October 9.

“We have been looking forward to the limited beta release of the new Cummins 12L gas-only engine and we are proud to be among the first to receive these new tractors,” FedEx Freight safety, fleet maintenance and facility VP John Smith said there. “This is the first engine powerful enough to meet most of our needs that is gas-only,” Smith said. “In other words, it does not require diesel or diesel after-treatment to operate.

Dallas Has the Infrastructure

“During our testing phase, the LNG tractors will be ‘slipseated’ so they are actually used in two road schedules per day, logging nearly 1,000 miles per day,” Smith said. “This will allow us to quickly and thoroughly test the new engines and to determine if they perform adequately in our duty cycle.

“Natural gas is a cleaner burning fuel, which provides an environmental benefit through lower greenhouse gas emissions. We’re excited about the potential, and are committed to thoroughly evaluating the technology to determine if it’s a good fit for our fleet.”

The two new Kenworth tractors are to be formally unveiled – at which time they will enter trial service – at a media event in Dallas on November 1. The Dallas area, says a FedEx spokesman, “has the infrastructure in place that will support our refueling needs.”

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Source: Fleets & Fuels reportage


Posted in Fleet Order, LNG, NGVs and tagged , , .

6 Responses to FedEx Makes First LNG Foray

  1. Joe Dias says:

    how many miles per gallon on these trucks?

    • Mark Doyle says:

      The CNG version of the ISX 12G will see a savings from 17 cents to 41 cents/mile. This factors in many variables but it is camparing the fuel usage of diesel tractors and cng tractors running the exact same routes.

  2. Jan Horsfall says:

    Any sense for expansion of this program at FedEx?

  3. John Griffin says:

    Time will tell. A recent conference indicated 6.5 mpg vs. 7.5 mpg for diesel. Natural gas is almost $2.00 per gallon cheaper than diesel though.

  4. Bob says:

    Spark Ignited Natural Gas engines typically see a 10-15% reduction in fuel economy over a similar sized diesel engine with the same operating conditions.

  5. Patrick says:

    We should also expect that the spark-ignited engines will get fuel economy numbers closer to diesel with more highway mileage. The throttling losses of spark-ignited engines affect fuel economy the most at low speeds and idle.

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