I met a fellow in Colorado last month who was pulling the identical 5th wheel as mine and he was driving an F150 heavy duty with tow package and the 3.5 Eco Boost. He said it did a good job and had ample towing ability in the mountains. I pull mine with a Ram Cummins and was interested in talking with him because he had the same trailer but less truck. Our 5th wheels were Grand Design Reflection 27 RL models. Same year and everything. I know that Grand Design stopped making the 27RL the model year after 2017 but came out with a similar model. I have seen this new model at my local dealer and it is a very practical comfortable looking unit. Hope this helps you
