Real MPG info needed

[bcso0416]

I am about to purchase a 2025 4X4 1500 with the new Hurricane Engine. The truck I will be ordering, will be a crew cab with the 5.7 bed and it will be a loaded Big Horn with the towing package along with most all bells and whistles. What I really would like to know is, what MPG can I expect with the 3.55 gearing vs the 3.92. Anyone with either of these would know what the real City and Highway mpg is. I am leaning on the 3.92 to get the better tow weight but can go with the 3.55. Thanking you for your time in advance.

 

[jmr]

After 4,400 miles my lowest mileage was 16.4 the highest was 19.5 overall being 17.7 mpg hand calculated.
I have a Rebel that has 3.92 gears and 33" A/T tires so it's not mpg friendly.
The 3.0L runs stronger and gets better mileage than my 2023 Laramie with 5.7L , 3.92s with 22" rims.

 

[RedFred]

I have a Laramie with the 3.55 rear. I have been averaging between 18.75-20mpg per tank full. This is about 1 mpg better than I was getting with my hemi with 3.21's.