New engines provide up to eight percent fuel economy improvement in International DuraStar and WorkStar trucks<br />
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LISLE, Ill. - Navistar, Inc. announced today that it 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. The company's internal testing shows these products are delivering up to eight percent in fuel economy ...This story is related to the following:Truck Engines