Sponsored

3.5 EB Real World MPG

Devilsown

New member
First Name
bob
Joined
May 16, 2021
Threads
0
Messages
2
Reaction score
0
Location
Trenton, ohio
Vehicles
2021 f150 cc
Occupation
Ford technician
my SC 5.5 bed, max tow on 20x10 weld wheels and 295/55/20 ridge grapplers with 2" level gets 19.5 mpg 50/50 highway. i only run top tier gas, mainly sunoco 87 octane. i would run 93 and get around 21 mpg but @ $4 a gallon thats alot money w a 36 gallon tank lol i figured over 700 miles a tank is good enough lol
Sponsored

 

AutonomousHybridF150

Well-known member
First Name
Kristopher
Joined
Jul 13, 2021
Threads
0
Messages
366
Reaction score
380
Location
Pensacola Fl
Vehicles
2021 F150 Powerboost
Occupation
Adjuster
I use premium but only because I’m in Colorado and regular is 85 here. Since Ford seems to suggest 87 even at higher elevations I figure play it safe and pony up for the good stuff. 87 technically exists at mid grade but Costco doesn’t carry it and their often doesn’t seem to be a huge price difference between 87 and 91. I’ve lately been getting 22 to 23 highway and 20-21 overall on mostly highway driving with about 4000 miles on it, after being in the 18-19 highway 17 overall range for most of the winter when the truck was brand new. I’ve been running premium the whole time so not sure if it has the most to do with engine break in, weather (including not having to run in 4A regularly for snow), or wearing some rubber off the Wrangler Duratracs I have on it but have definitely seen good improvement over the last few months.
Your statement is 100% correct.

My friend had a F-150 with a very expensive built 5.4 3v with Roush blower, meth injection, etc., and the works. He had it tuned for 93 octane pure gasoline, not thinking that CO only has 90 or 91 in some places. When traveling through CO he filled up rather than walk using their “premium grade” which was 90 or 91 and then immediately encountered pre-ignition under mid to mid/light throttle for the rest of that tank. But that was a race spec motor tuned for max output, with many other “race truck parts” added on the suspension and other areas, so this would be expected if you don’t run the required fuel octane on a race engine.

But in the OEM World Ford can’t put a million engines on the road and not pre-plan that people are going to use the bottom grade gasoline in it, All the time. Along with those same folks usual 25,000 mile oil change Interval.

I think part of the reason tuned EB motors make 50-90+ HP extra is because Ford leaves so much headroom for extra “tune safety” with their rich fuel curves, overly retarded timing curves, octane sensors in the gas tank, and computer controlled knock retard. Ford has these systems working together to make sure the 25-30PSI of twin turbo max boost doesn’t grenade the internals every time a fuel pump fails or someone gets a tank of bad gasoline.

Chances are you are fine running the bottom end gas in your EB motor regardless of what Ford recommends. If you are overly worried about it, go put 3-5 gallons of E-85 in before you fill up and that will take care of any octane rating deficiencies.
 

Pibblemobile

Well-known member
Joined
Jul 16, 2021
Threads
0
Messages
159
Reaction score
114
Location
Sioux Falls
Vehicles
2020 F150
Not a 21 but I do 17-19 avg. with my 3.5 with 3.31’s in my 20. No level but I went up 1 tire size to a 275/60/20. It’s about 1 MPG less than my 18 with a 2.7 that had stock tires.
Ford F-150 3.5 EB Real World MPG E77FD421-1A6D-4D7E-A2C5-584B6C02CAB9
 

Mike D

Active member
First Name
Mike
Joined
May 17, 2021
Threads
2
Messages
44
Reaction score
29
Location
Maryland
Vehicles
2021 F-150 XLT sport 302A
Occupation
Gov
My dash is reading 20.5 average for my 21 F150 3.5, SC, FX4, max tow, 3.55 rear, I'm coming from a 2019 F250 6.2 which had a bad drinking problem at 12.9 average. These are dash readings so who knows how close it is to real life mpg's.
 

Sponsored

Kanuck

Well-known member
First Name
Don
Joined
Aug 9, 2021
Threads
18
Messages
1,545
Reaction score
1,306
Location
Manitoba
Vehicles
21 XLT Scab 3.5 EB 6.5
Occupation
Retired Electrician
Stock, as is from the factory, 3.5 EC S cab with 3.55's - Travelled 6179 Km (3840 Miles) = 12.715 L/100KM (22.2 MPG = Canadian Gallon) or 18.5 MPG (US Gallon). I am interested to see what it is like on a long trip. Have not traveled more than 100 km from home.

I should add , I have done a lot of idling. Showing off the truck, playing with all the options and tring out different things as I go through the learning curve with all the teck on board. Have to play!!! LOL
 
Last edited:

JAB2435

Member
First Name
Jeff
Joined
Apr 21, 2021
Threads
0
Messages
10
Reaction score
4
Location
Ga
Vehicles
Kia Telluride
Occupation
retired
Has anyone heard if the 2022 Raptor HO 3.5 is going to get an increase in horsepower ? I read in an article it was going to go up to 480 hp.
 

HCFX

Well-known member
Joined
Oct 15, 2020
Threads
8
Messages
152
Reaction score
196
Location
Canada
Vehicles
2023 F-150 Lariat BAP
I see about the same as every other 3.5 I've owned. 16-17mpg unloaded, 5 at worst/7 at best towing my 27ft camper. Avg 200-220 miles per tank towing. Horrendous!
 

Sponsored


Stubblejumper

Well-known member
Joined
Apr 5, 2021
Threads
10
Messages
193
Reaction score
142
Location
Alberta
Vehicles
2021 F150
Over 11,000km now mixed driving highway and small city, and 10.8 l/100km overall. Very little trailering, but with winter coming and snowmobile season coming with it, I will see how cold weather and towing a snowmobile trailer effects the mileage.
 

gtotco

Well-known member
Joined
Apr 5, 2021
Threads
3
Messages
345
Reaction score
274
Location
Colorado
Vehicles
2021 F-150 Lariat 502A FX4 3.5L
I see about the same as every other 3.5 I've owned. 16-17mpg unloaded, 5 at worst/7 at best towing my 27ft camper. Avg 200-220 miles per tank towing. Horrendous!
I’m averaging a 20.2 over the last 6500 miles on Fuelly. Mostly mountain driving and some offroading, plus I live in city (though mostly I just don’t drive around town).
 

Roady

Well-known member
First Name
Cory
Joined
Jan 10, 2021
Threads
9
Messages
436
Reaction score
670
Location
Northeast PA
Vehicles
2021 F150 XLT FX4
Occupation
Information Technology
I realize that 61 miles is a small sample size but overall I am pleased with my MPG on my 3.5.
I just completed a 500 mile trip from PA to NC thru the Virginia mountains and averaged 26. (verified at the pump)
Ford F-150 3.5 EB Real World MPG IMG-2470
 

gtotco

Well-known member
Joined
Apr 5, 2021
Threads
3
Messages
345
Reaction score
274
Location
Colorado
Vehicles
2021 F-150 Lariat 502A FX4 3.5L
Over 11,000km now mixed driving highway and small city, and 10.8 l/100km overall. Very little trailering, but with winter coming and snowmobile season coming with it, I will see how cold weather and towing a snowmobile trailer effects the mileage.
Winter generally crushed mine, no snowmobile needed. I went from averaging 18.5-19mpg in winter to generally 20.5 to 21 since weather has warmed - so approximately 2 mpg hit just from cold weather, winter gas and driving in 4A.
 

Pibblemobile

Well-known member
Joined
Jul 16, 2021
Threads
0
Messages
159
Reaction score
114
Location
Sioux Falls
Vehicles
2020 F150
Not thrilled with the mileage in my 20. Did a decent amount of interstate last tank and got 16.5 despite the trip showing 18.5. A lot of miles in ECO...maybe I’ll try normal.
Sponsored

 
 




Top