The last time I went camping I noticed most of the 30 ft. or smaller TTs were being towed by F150s and most were Eco boost , the bigger TTs and medium size 5ers were towed by one of the GM 2500 twins with a duramax and the big 5ers were towed by the ram dually with the Cummins, I had a 6.0 PSD and I also had a comfortable pair of shoes as I needed them on several occasions, I'm towing now with a F150 with the 4.6 , it doesn't pull like the 6.0 but I know I'm going to get there and back home