MPG when leveled on 35s

[l1tech]

Hello all... I am new on this forum... I have a question for you... I just got my new Tremor 2025 3.5 litter around 2 months ago / 1200 millage now... my truck is still stock... and is giving me 13MPG in the city and around 16 MPG highway, and I am seeing that most of you have 16 MPG at city and 20 MPG... do you think my case is normal because the truck is brand new?? (this is what the dealer told me)... somebody of you had the same experience when you bought your truck? If so... at what millage did you see an improvement?

I've logged every tank of fuel on my 2024 3.5 since the day I bought it new with 6 miles on it. It now has 15,000 on it and the mpg has not changed at all. I've done this on every new vehicle I have bought and the mpg has never increased. Increasing mpg as the vehicle breaks in was true about 30 years ago but is just a myth now. My worse mpg is13.9 and by best is 19.2. My worse towing mpg is 7.7 and the best is 11.7. I've been averaging 16.3 over the last 10 tanks of gas. I also compared using 87 and 91 octane fuels and neither octane made a difference in mpg. Where you live, temperatures and how you drive have a huge affect on mpg. My city mpg in Phoenix AZ is not going to be the same as someone's city mpg in Appleton WI. My truck is all stock with the exception of raising the front 1.5 inches and lowering the rear however it did not affect mpg at all.

 

[Lobo Tremor Iconic]

I can understand 13 city, but 16 highway is not impressive. How fast are you pushing her? I get about 20-21mpg at 65-70mph, I have the 5.0.

Your fuel economy will improve gradually over the miles, though mine went down as I modded it (34x12" E-loads. New skid plates, rock sliders, tons of static weight etc).

75 mph average... and live in Texas... almost at sea level... I am planning to level the front 2"... but I want to wait a few months just to see if the MPG improves...

 

[CAMDENN]

75 mph average... and live in Texas... almost at sea level... I am planning to level the front 2"... but I want to wait a few months just to see if the MPG improves...

Sea level or not, you’re not not going to get great mileage driving at 75 MPH and with the EB, more than likely you’re making more boost at that speed.

 

[DoubleT]

Terrain has a lot to do with it as well. I live in Houston and drive out to the Texas Hill Country on a semi-regular basis. The first 2 hours of the drive or so is pretty flat and I can average anywhere between 19-21 mpg at 75mph. Once I get into the hills gas mileage nose-dives pretty quick if I maintain 75.