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Video: Cummins' Tim Proctor, left, talks with TT's Roger Gilroy about meeting the fuel economy needs of customers who are concerned about global warming.

North American Council for Freight Efficiency Executive Director Mike Roeth (right) discusses diesel efficiencies demonstrated during the Run on Less event, and where diesel fits into the future of trucking as a power source, with TT Executive Editor Joe Howard.

On the heels of Tesla's electric truck unveiling, our Nov. 17 LiveOnWeb program took a look at fuel efficiency and cost-savings gains that cleaner-running diesel and natural gas promise, as well as the intriguing potential that electric offers, even for Class 8 trucks.

"Natural gas is ready right now, it’s available, and it should be part of that overall equation when any fleet operator or transit company looks to deliver goods," says Dan Gage (right), president of Natural Gas Vehicles for America, talking with TT's Joe Howard. More at bit.ly/TT-LOW1117. (Joseph Terry/Transport Topics)

Customers are starting to place orders for Tesla Inc.’s new all-electric Semi truck, with retail giant Wal-Mart Stores Inc. preordering for both its U.S. and Canadian units.

Tesla unveiled its highly anticipated electric-powered semi-truck on Nov. 16, 2017. Here are its first public moments and the introduction by company co-founder Elon Musk. (Seth Clevenger/Transport Topics)

Tesla Inc. will unveil its electric Tesla semi-truck on Nov. 16 in southern California. It’s all part of CEO Elon Musk’s “Master Plan Part Deux” in which he vowed to expand the company’s lineup to “cover the major forms of terrestrial transport.”

XStream Trucking Inc. launched its aerodynamic device called TruckWings to address the gap between a Class 8 truck and trailer when at highway speeds.

On the heels of Tesla's electric truck unveiling, our Nov. 17 LiveOnWeb program took a look at fuel efficiency and cost-savings gains that cleaner-running diesel and natural gas promise, as well as the intriguing potential that electric offers, even for Class 8 trucks. Watch the replay.

Diesel-fired engine pre-heaters can help ensure reliable engine starts in cold-weather conditions while reducing engine wear, preventing service calls and boosting driver satisfaction, fleets said.