Natural gas-powered trucks gaining popularity with over-the-road freight haulers

When you take the family out for the summer road trip, that 18-wheeler you are about to pass might be a Kenworth T680 road tractor with a concealed bank of compressed natural gas (CNG) tanks and a Cummins Westport natural gas engine.

After nine decades of truck manufacturing, Kenworth Truck Company, a division of PACCAR Inc (ticker: PCAR) of Bellevue, Washington, keeps alert to technology changes affecting its customers. And a switch in fuel preference to natural...

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