Ford and its long-time diesel engine supplier Navistar have been bickering through their respective lawyers for the better part of the last two years. Ford has accused Navistar of building ...

Looking at figures for the nearly identical Navistar T444E on which the 7.3L Power Stroke is based, 50 percent of those engines have proven to surpass the 350,000-mile mark. The 7.3L Power Stroke ...

"It's a fundamental shift," Ciesielski added. It's also a fundamental shift from then-Navistar's ill-fated fully EGR MaxxForce engines that hit the market in time for Greenhouse Gas 2010 regulations.

The relationship had been one of give and take – Navistar giving engines (most recently diesel ones for Ford's heavy-duty pickups), Ford taking the motors and in turn giving cash to its supplier ...