Putting a new cost-efficiency measure—“fluid economy”-- into play, Navistar Inc. announced yesterday that independent third-party testing has proved its International ProStar+ tractor powered by its ...
TORONTO, Ont. — By chance, I landed a week-long city run with a leased International ProStar+ paired with a production model EPA2010-compliant MaxxForce 13 engine. I’ve been anxious to try this engine ...