Navistar begins shipment of 9-, 10-liter DuraStar, WorkStar vehicles
Navistar Inc. has started customer shipments of its first International DuraStar and International WorkStar vehicles with the company’s 9- and 10-liter engines with selective catalytic reduction (SCR) emissions technology. According to the company’s internal testing, these products deliver up to an 8% improvement in fuel economy over the previous generation. “Our field test customers are
