2017 F-150 Diesel?
This F-150 test mule sure sounds like a diesel. Link
Forum Discussion
Wikipedia also suggests that the Lion V8 might be the engine:
https://en.wikipedia.org/wiki/Ford_AJD-V6/PSA_DT17#Lion_V8
https://en.wikipedia.org/wiki/Ford_AJD-V6/PSA_DT17#Lion_V8
