Lifetime via gas buddy app at 18.5. truck says 19(I never reset trip B, so I can see it). Had a 23mpg 400 mile road trip, usually 18 to 19 with a 50/50 mix of city and highway daily drive. Some 25mpg sections here and there. I drive fairly conservative, may get to the speed limit quick, but that's about it. Tow a small trailer on occasion. 2019 LTZ 6.2 crew shortbox Edit: 21,000 miles. 3.23 gears, bed cover. Run premium mostly. Towing I probably have 2k miles with a smallish flatbed. Sent from my SM-N975U using Tapatalk