Volvo Trucks North America has enhanced the fuel economy packages for its VNL and VNR models.

Chief among the changes, the proprietary D13 turbo compound engine is now standard in all VNL 740, 760 and 860 models.

The D13TC features a Dynamic Torque system that adjusts to exact loads without affecting performance, the company says. The engine also offers three individual drive models, 405 hp, and the latest updates to Volvo’s wave piston.

Meanwhile, updated fuel economy packages – combining aerodynamics and powertrain technologies — boost fuel efficiency by up to 16% for the VNL and 6% for the VNR when compared to baseline models.

On the VNL, the Plus fuel efficiency package includes a D13 VGT engine package, I-See predictive cruise control, front bumper with full airflow deflector, chassis fairings, cab side fairings with extender, and low rolling resistance tires., delivering fuel savings of up to 4%.

The Advanced TC package, boosting fuel economy up to 12%, features the D13TC engine, mirror arm wind deflectors, extended chassis fairings with ground effects, and trim tabs.

The Xceed package, offering 16% better fuel economy, is limited to Volvo VNL 760 and 860 models, and includes Advanced TX features, a FlowBelow Aerokit, and an optimized wheelbase and trailer gap to reduce drag.

In the VNR, the Plus package offers up to a 4% fuel economy improvement with the D13 VGT engine package with I-See predictive cruise control, chassis fairings, and cab side fairings with extenders. Its counterpart, the Advanced package, offers up to 6% better fuel economy by incorporating Plus features along with a D13 VGT XE engine package, mirror arm wind deflectors, ground effects, and trim tab.