[jsmith948]

I fail to see what difference how much you tow makes regarding which engine you choose.
Just run the numbers. Empty or loaded, the diesel will get way better fuel mileage and that savings on fuel adds up. We get, depending on wind and terrain and how fast we drive, 12.5 to 14 mpg towing and 17.3 empty city - 20 to 22 mpg empty on cruise at 60mph. The 331 are the way to go with the diesel. JMHO