Thought some of you would like to see the Expedition Ford didn’t want you to know about. It was spotted near Ford’s development facility in Michigan a few years back...
Underneath the hood of that test-mule lies the 4.4 liter "Lion" V-8 diesel. A modified fuel door, filling port, and exhaust system were seen on this experimental Expedition. The spy photographers also noted the unmistakable sound of clag-and-chatter that diesel engines make.
Ford has kicked around the idea of stuffing a diesel in the Expedition, so the next generation Expedition could still get one.