I knew when I got the 2019 I was going to be lifting it and going with 34-35” tires. That was the main reason why I got the 3.92s. Second reason is for the “legal” towing capacity.
I drive a 2015 1500 with 3.21s at work and it cant move out of its way fast enough for my liking. It just didnt have that get up and go I was expecting from a hemi. I traded in a 2012 Ram 2500 with the 6.7 and when in the right rpm range, it pulled like hell with no signs of slowing down. It was my daily driver for 6 years so whatever I got had to at least be a bit nimble. While I usually try to go the speed limit, I also dont mind flooring it to go around a vehicle or passing vehicles. The 3.92s are perfect for me because while I can still get 17-18 cruising on the highway at 65, it will move when I floor it (Ive gone to 85-90 a couple times tring to pass a vehicle. Talk about a heavy foot lol). Im currently averaging 16.5 mpg with 60% highway (avg 60-65 speed limit)/40% city stop and go traffic. The only complaint I have it so far is that Im at 2k rpms at 65-70. Im going to level it and put 275/65r20s soon to help lower that and that should yield me some mpgs in return if I stay off the gas pedal. Like a couple of people have said, my eco light will come on if I let off just a tad bit when going a set speed. I can get it to come on at any speed with a bit of throttle manipulation. I have a 55 mile round trip to work with 50 being all freeway so Ive gone 60, 65, 70, and 75 for prolonged distances and I have kept the eco light on for the most part. Im still trying to figure out that sweet spot for my truck. But so far with my current tank, Im looking at getting 17mpgs. Which for the type of driving I do, I’ll take that all day. I just have 4k miles so we will see if it goes up anymore.
I will say, yesterday I drove a coworkers 2019 yukon with 3.08s and that thing couldn’t get out of its way if it wanted to. You could feel the weight of the vehicle when you drove it, not to mention it rode very stiff compared to my 2019. I floored it a couple of times and it wouldnt go anywhere. My truck on the other hand doesnt feel like how much it weighs, but neither did my 7800lb 2500 lol. After we drove the yukon, we hoped in my truck and I floored it a couple times to show him the difference and he just laughed and was in awe of how slow the yukon moved. Granted it wasnt apples to apples, it didnt feel like we were in a 5000lb truck.