Hello everyone I am currently looking to buy a new to me truck. I currently have a 2012 GMC 2500 6.0L. It gets about 7-7.5 MPG while towing my holiday camper which has a max weight of 8000lbs. I am wanting something that gets better mpg while towing and running empty. I know a diesel would be the best choice but I don’t drive enough to justify one. I have been looking at the EcoBoost and the Ford 5.0. The EcoBoost always worries me with pushing a little v6 that hard but they have been out for a few years and it seems like there is only a few problems and most of them have been fixed in the gen 2 engine. I have also looked at the 5.0 and would consider that for the reliability but it seems like most of the used trucks have the 3.5 eco in them. So I am looking for some actual mpg and Input on the engines.