So I have two different types of Ram 2500's. The truck I use for work is a 2018 2500 with a 5.7 Hemi. Its a regular cab long bed 2wd, I average around 10 mpg. Weekend truck is a 2020 2500 Diesel crew cab short bed 4x4, my average is currently at 17 mpg Both of these trucks get the job done...