Daimler Trucks North America (DTNA), which builds Freightliner as well as Sterling and Western Star trucks, says it will use Daimler's Blue-Tec technology on its Detroit Diesel engines beginning in 2010. Production of Freightliner and other DTNA trucks powered by the new 15-liter (L) Detroit Diesel DD15 engine began earlier this year. This engine will be offered as a base model 450-horsepower (hp.) unit, producing 1,550 to 1,650 lbs.-ft. of torque, according to the OEM, as well as in a 560-hp. version that produces 1,750 to 1,850 lbs.-ft. of torque.

International Truck & Engine

International has rolled out a new flagship model — the LoneStar. The OEM says the LoneStar was designed to deliver the fuel economy of aerodynamic tractor models along with the comfort, customization and chromed looks of the long-nosed conventional models.

According to International, the LoneStar is expected to be 5 to 15 percent more fuel-efficient than other “classic” truck models. It features standard antilock brakes as well as roll stability and traction control systems, Bluetooth integration for hands-free phone use, and an automotive-styled dash and gauges with a leather-wrapped steering wheel. Despite the forward placement of the front axle, the LoneStar provides a 50-deg. wheel cut and the low, chromed front bumper is one piece of vacuum-formed aluminum.

Also new to the International Class 8 lineup is the PayStar 5900i Set-Back Axle (SBA), a Class 8 vocational on/off-highway truck aimed at severe-service applications such as construction, oil field, logging, heavy-hauling, mining and recovery. The truck features a wide-track, set-back axle design for better front axle load distribution and improved maneuverability, the company says. It can be powered with Caterpillar or Cummins diesel engines up to 15L and 625 hp.

Kenworth

Kenworth Truck Co. will begin production of T800 Class 8 models fueled by liquefied natural gas (LNG) in 2009. The trucks will use Westport Innovations Inc.'s LNG fuel system technology adapted for the Cummins ISX 15L engine.

Initially introduced for the T660, Kenworth Clean Power will become a factory-installed option for new W900s and T800s equipped with the 72-in. AeroCab sleeper. Kenworth Clean Power uses deep-cycle batteries that power a thermal storage cooler with 21,000 British thermal units (BTUs) of cooling capacity. The system has the capability to provide engine-off cooling and heating, plus 120V for hotel loads. Once the truck is shut off, a thermostat regulates the desired temperature and a variable speed fan circulates chilled air through a duct located near the bunk.

The T2000 now has the Kenworth Driver Information Center and new standard multiplex instrumentation. The driver center provides information on miles per gallon, engine and idle hours, idle percentage, and optimum rpm range. The T2000's new dash offers a more ergonomic, modern and visually appealing instrumentation system, the company says.

Kenworth has added new front and rear suspensions for its heavy-duty trucks. The AG130 is a proprietary front axle air spring suspension, and the AG400L tandem rear suspension offers a smooth ride by using a trailing arm design, the OEM says.

The company also has added new automatic transmission offerings for customers in construction and short-haul applications with high-horsepower requirements.