Navistar Inc., at a press event in Louisville, Ky., on Wednesday, March 24, introduced the new International ProStar+, which has improved aerodynamics and a nearly 1,300-pound weight reduction from ...

LOUISVILLE, Ky. — Navistar Inc. has introduced the ProStar Plus, a lighter, more fuel-efficient version of its ProStar Class 8 tractor. Fuel economy, driver environment and vehicle weight were the ...

Navistar will deliver International ProStar sleepers and day cabs powered by 2010 Environmental Protection Agency-certified MaxxForce 13 big bore engines using exhaust gas recirculation technology.

The new International ProStar+ has improved aerodynamics and a nearly 1,300-lb. weight reduction from the existing ProStar model. The truck is powered by the Advanced EGR MaxxForce 11 and MaxxForce 13 ...