3/25/2015 READY FOR THE ROAD AHEAD: PETERBILT DEBUTS NEW PREDICTIVE CRUISE TECHNOLOGY

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Peterbilt Media

20152015 Media

READY FOR THE ROAD AHEAD: PETERBILT DEBUTS NEW PREDICTIVECRUISE TECHNOLOGY

LOUISVILLE, Ky. (March 25, 2015)

Anticipating and responding to changes in terrain – such as accelerating ahead of hills andcoasting on the decline – Peterbilt’s new Predictive Cruise technology automatically optimizesengine and transmission operation when in cruise control for maximum fuel economy, PeterbiltMotors Company announced during the Mid-America Trucking Show.

“Predictive Cruise technology isour latest innovation to providecustomers with trucks that lead theindustry in fuel efficiency,” saidDarrin Siver, Peterbilt GeneralManager and PACCAR VicePresident. “By integrating thepowertrain, cruise control andsatellite mapping, the vehicleautomatically responds to the roadahead for up to three percentimproved fuel economy.”

Predictive Cruise includes theneutral coasting feature. Neutralcoasting utilizes the truck’s momentum to save fuel and engages the engine brake to managedownhill speeds.

According to Peterbilt Chief Engineer Scott Newhouse, Predictive Cruise and neutral coastwork together in five steps to maximize the truck’s kinetic energy:

1. When approaching a hill, the system uses onboard maps and GPS data to accelerate to the

3/25/2015 READY FOR THE ROAD AHEAD: PETERBILT DEBUTS NEW PREDICTIVE CRUISE TECHNOLOGY

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optimal speed and adjust for the increasing road grade;

2. Before the peak of the incline, the vehicle curbs its speed before proceeding downhill;

3. Neutral coast engages as the truck rolls downhill;

4. If necessary, the engine brake engages to avoid over speeding; and

5. Cruising speed is maintained as the vehicle continues onto level terrain.

“Predictive Cruise also integrates with Peterbilt’s Driver Performance Assistant, which coachesdrivers with fuel-saving tips,” said Newhouse. “Predictive Cruise is available factory installedfor both the Model 579 and 567 and plans are to expand to other products in the near future.”

Newhouse added, “Predictive Cruise builds upon our lineup of fuel-saving solutions, such asthe Driver Performance Assistant and the APEX powertrain. Through innovative technologiesand optimized aerodynamic designs, Peterbilt continues to raise the bar for vehicles withoutstanding ROI.”

About Peterbilt Motors Company

Based in Denton, Texas, Peterbilt Motors Company combines a global reputation for industry-leading design, innovative engineering and fuel-efficiency solutions with superior quality toengineer a truck that stands as the "Class" of the industry. Through its 300-plus NorthAmerican dealer locations, Peterbilt also provides a comprehensive array of aftermarketsupport programs to complement its full lineup of on-highway, vocational and medium dutyproducts, including alternative fuel vehicles. Customers enjoy industry-leading service andsupport, including preventive maintenance plans, expedited QuickCare services, automatedparts inventory replenishment and 24/7 complimentary Customer Assistance through 1-800-4-Peterbilt.

Peterbilt is a PACCAR Company, traded publicly on the NASDAQ as PCAR.

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