There has to be some problem because the 2019 Ram 1500 has the full electrical fan instead of the mechanical fan like on the 2018 and earlier model rams with Hemi 5.7l engine m models. That should get an extra 3 mpg better on the 2019 models but instead they get 2 mpg worse why?????Yes I have a tonneau cover too. my 19 Ram gets the worst MPG out of all 3 rams I have owned. I had a 2016,2017, and now the 2019.
I know that the mufflers are very restrictive TRASH and a magnaflow muffler and a K&N drop in gets me about 16.5 mpg combined and thats still bad! Truck is 3 months old and 4wd with air suspension.
I wonder if the new for this year carbon filter on top part of filter cover is partially to blame? I know it loses 4.5 horsepower on a 4 cylinder car put i dont know how much that affects a 5.7l V8.