CRAZY RESULTS: F250 7.3 Godzilla MPG Normal vs ECO challenge!

My work vehicle is a 2020 Ford Transit, with the Ecoboost and 10 speed. Eco-mode only helps in city driving by modifying throttle response, and shift points, straight highway not so much.

We do 1100 mile mountain trips every couple weeks through the winter. No trailer, but a sled deck and two snowmobiles. Truck is a 2022 F-350, 7.3L with 4.30 gears. Average hand calculated mpg is 11.7 (US mpg) and it is always within 0.2 mpg of what is displayed on the truck.

I have a 2011 F250 with 6.2 Gas engine, crew cab, standard bed, amd FX4 on it. Currently my tires are 295/70R17LT Mickey Thompson Baja Boss. Driving around unladen I usually average about 12 mpg. I don't drive it that much due to my occupation as a OTR trucker. I've had it about 7 years and put maybe 15k miles on it. It's not super fancy or tricked out, pretty much all OEM. Gets the tasks done that I want, had been reliable, and most importantly is paid off.

Thanks for clearing that up!

I have a 3500 cargo van with 6.0. It is always loaded with about 1k# and ladders on top. My average is a consistent 12.4 mpg, that is over 20k miles highway, backroads, and a little bit of city driving.

Great video!! I have the same truck-2022 F250-7.3---3.55 gears. I keep my tires a bit harder than normal(72PSI) as I pull an RV on weekends and don't want to air up and down all the time. My daily drive to work is through my small town(2 red lights) and then 4 miles to work outside of town. I'm always on ECO and consistently show 14.1 mpg. On the highway, with ECO on, using cruise, at 70, I consistently show 17.9. I admit I have not used true fill up gallons/mileage as you did. I was shocked that the ECO mode actually showed worse!! Love the truck, and especially how it handles the RV-30' Coachman 259(7000lbs+). Good luck with yours!!!!

If I’m spending the 75 - 80k to get that truck . . and I have the money to do so, mpg’s are of zero concern. BUT THANKS !

As I've seen it explained that it only reduces the aggressiveness of throttle response, I could see how eco mode would help some for block to block city driving, or lots of stop and go on insane clogged freeways if one isn't a gentle driver on the pedal but otherwise from your testing if you normally drive easy and in your case a fairly steady pace, its dead even ( the slight difference you had would be slight driving differences, nothing more or less ). A great test you performed and proves its more of a gimmick to sell vehicles then anything with substance. Hopefully you have a good floor mat so when the egg breaks it doesn't make a huge mess on the carpet 😄

7.3 Godzilla 430 gearing I usually get 11.4 to 11.8 a gallon

2022 7.3L 3.55 numbers changed at 10k miles Now, highway empty 15-15.5 mpg love this truck.

I have the 3.5, I do use ECO mode regularly because it does improve .5 mpg to 1 mpg on the average mpg of a tank of gas. I check average by the tank I will average 19-22. I definitely get worse mpg's in the winter. You did mention you can't use cruise control, I find cruise is key to getting the best mpg's and you could use cruise you just don't want to, put in on 55 in a 55 and I'll bet you can use it. When gas hit $5 a gallon I slowed down more or less to the posted speed limits, doing so significantly stretches the gas tank. I rarely get less than 650 miles from a tank and occasionally will get better than 700 miles from a tank. Prior when I typically drove 75 I would average 525 miles per tank. Honestly doing 55 or 65 vs. 75 has minimal impact on when I arrive somewhere, at most I'd have gotten somewhere 5 minutes earlier, I visit the gas station on average once a month since I slowed down a bit.

'21 6.6L Duramax @70-75mph I avg around 19mpg just hauling some stuff in the bed. Never tried it empty... Towing 25' 6500lb TT, avg around 13mpg up in the Rockies.

The big beast of a truck what do you expect I love my 2021 F-350 Tremor 7.3 Gas with the 4.30 gears best truck I ever owned

You are spot on!! Got my 2022 7.3 Godzilla in May 2022 and my mileage is exactly the same not towing. Towing my 10,000 lb boat I get between 8.5 and 9 MPG and with my 5,000 lb travel trailer I get just a little over 10 MPG. I love my truck.

Very well done

I get 13.1-13.4 on Normal mode hand calculated. Best I ever got on 535 mile interstate trip was 15.3. My computer is usually off 1-1.5 mpg.

Awesome Info Man

Another awesome video my friend

I have a 22 with 65k miles on it. In all the different ways I drive, I have gotten everything from 10-18mpg. I'd say the norm for me is 13mpg, that's a normal day of 75mph for an hour, idle for an hour, back and forth between the two with an average of 250-300 miles per day.

Wow, lower than I expected. I have a 31’ Class C motorhome on a 2023 E450 chassis with the 7.3L. When towing my Jeep Gladiator, I’m getting 8 MPG (calculated). No complaints considering it has the aerodynamics of a rolling brick.