Truck News


Kenworth adds fuel economy package

Kenworths are now available with a Paccar powertrain fuel economy package – combining the Paccar MX-13 engine with 405 hp at 1,650 lb-ft of torque, 12-speed automated transmission, 40K tandem rear axle, and enhanced Kenworth predictive cruise control.

The MX-13 engine features a new torque curve that further refines fuel economy by lowering the horsepower rating while maintaining torque, the company says.

The predictive cruise control varies speed over rolling hills without reducing the average vehicle speed.

Meanwhile, the transmission’s software has been optimized for the MX-13 to allow for lower rpms at cruising speeds.

The fuel economy package will be available in the first quarter of 2019.

John G Smith

John G Smith

John G. Smith is the editorial director of Newcom Media's trucking and supply chain publications -- including Today's Trucking,, TruckTech, Transport Routier, Canadian Shipper, Inside Logistics, Solid Waste & Recycling, and Road Today. The award-winning journalist has covered the trucking industry since 1995, when he was named the editor of Truck News and led the development of Since then he has been a contributing editor to industry publications across North America, served as a frequent speaker on industry topics, and been honored for his coverage of business and technical matters alike.
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