[Vettezuki]

When God said, "let there be diesel trucks" he was referring specifically to you towing a race trailer. The wave of torque that comes on right off throttle cannot be over estimated. My parents have a Dodge with the Cummins and large horse trailer loaded with horses was probably something like your trailer setup (maybe a bit more). Prior to the diesel it was pulled, barely, by a Dodge with the 360. The diesel pulled it like it wasn't there hardly. Additionally the construction of the diesel engines is more of an industrial use nature. There isn't a reason in the world you couldn't push 500,000 miles on a well maintained diesel, though I don't know much about the Ford setup. I'd go diesel for sure, maintain it, and probably drive it for the next 30 years, at which point its total value is pretty high.