F-150---- V8 Gas Mileage? What MPG Do You Get??

[rpellerin]

I'm 19-20mpg on the highway, 16-17mpg in the city.
Towing has been between 9-11mpg, depending on winds.
currently at 4,500mi.

 

[SemperVee]

14.4 - 26 on the fwy. I drive mostly in town on Eco

 

[Yason84]

Any more updates on interstate fuel mileage? (70-80 mph) I'm still on the fence right now between a 3.5 or the 5.0. Currently own a first gen 3.5 4x4 screw 3.73 for the last 9.5 years. Would love to go back to a V8 this time around before they all disappear. My logic is thinking that the 5.0 would be more efficient in that window than the 3.5 cuz there is no boost to overcome the wind resistance. And with the 3.73, it would stay in 10th gear longer than the 3.31. Waiting till after November to pull the trigger on a new truck.

 

[MJG44]

I went from 3.5 to 5.0.
Mileage slightly better overall, but not much.
5.0 nicer drive.

 

[22XLT]

Getting 16.7 mpg average with 90% city/10% highway.

 

[tony72cutlass's']

Any more updates on interstate fuel mileage? (70-80 mph) I'm still on the fence right now between a 3.5 or the 5.0. Currently own a first gen 3.5 4x4 screw 3.73 for the last 9.5 years. Would love to go back to a V8 this time around before they all disappear. My logic is thinking that the 5.0 would be more efficient in that window than the 3.5 cuz there is no boost to overcome the wind resistance. And with the 3.73, it would stay in 10th gear longer than the 3.31. Waiting till after November to pull the trigger on a new truck.

I went for the 5.0 with 3.73, pulls awesome, and I get between 20-21MPG consistantly each fill. I find that the truck really doesnt have to work that hard to get up to speed around town with the 3.73. My commute is about 75% highway. I'm pretty easy on the gas around town, but i like to hear it roar when i get on the on-ramps.

I know it's not exactly the same, but my coworker has a ram 5.7 and that thing is an absolute pig on gas (like 14MPG), mean sounding growl though

 

[Graygoose2021]

went to Branson and back, using 91 octane, 70-80...5 hour drive each way, with 34's, got 17.2

 

[Rockman5159]

I've now had this truck for 4 months.
The very best average mileage I've gotten is
16.0- Miles a gallon. I mean that's the best..
That's highway doing the speed limit
with cruise control set.
For the most part I average around
14.5 MPG combined city and highway.
Do I have a problem??
Trying to find out what others driving a V-8 are getting?
I did have an O/2 sensor go out at 800 miles,
So do I have another problem?
Appreciate any feed back I can get..
Thanks.....

I have gotten as low as 16 and as high as 21 mpg,depending on how much my foot weighs. I have a 2021 F150 RCSB FX4 5.0 with 3:73 gears and 10 speed auto. The longest interstate trip Ive made is 215 miles driving 75-80 and average 19.2

 

[Rockman5159]

I also use 93 octane

 

[Yason84]

I went for the 5.0 with 3.73, pulls awesome, and I get between 20-21MPG consistantly each fill. I find that the truck really doesnt have to work that hard to get up to speed around town with the 3.73. My commute is about 75% highway. I'm pretty easy on the gas around town, but i like to hear it roar when i get on the on-ramps.

I know it's not exactly the same, but my coworker has a ram 5.7 and that thing is an absolute pig on gas (like 14MPG), mean sounding growl though

Yeah I kinda figured the 3.73 would help around town. My commute is 100% city but its only 6 miles round trip. But when it comes to road trips, towing or not, the less I have to stop to fill up the better. Your friend must have the 3.92 rear end, great for pulling but that's pretty much it. Those with the 3.21 claim they get 20-21.

 

[tony72cutlass's']

Yeah I kinda figured the 3.73 would help around town. My commute is 100% city but its only 6 miles round trip. But when it comes to road trips, towing or not, the less I have to stop to fill up the better. Your friend must have the 3.92 rear end, great for pulling but that's pretty much it. Those with the 3.21 claim they get 20-21.

He always tries to chirp the tires when he leaves the parking lot, so i wouldn't be surprised if hes got the 392!

 

[blk2021cv]

I have had my truck for one year and have about 25K miles. My combined city and hwy is 16.8 mpg avg. When I switch to eco mode my combined average will go up to 17.5 mpg. I mostly drive highway miles and have a round trip of 44 miles 5 days a week.

I'm happy with my 16.8 mpg average. For a truck that's 5,000+ lbs and has a v8 engine what more could you realistically ask for?

 

[MJ Heat]

I have a 2019 RCLB with the 5.0 & 3.15 rear end that I bought to use as fill in transportation till I got my 2022 Powerboost. It is a former uhaul truck that was ordered to their configuration & that they got rid of last year. I honestly did not have much expectation of good fuel mileage from it, but since I usually drive like an old man (I am old), it regularly gets in the mid 20's hand calculated at fillups. I can easily go over 500 miles on the 23 gallon tank. I have a whole new appreciation for the 5.0.

 

[Rockman5159]

He always tries to chirp the tires when he leaves the parking lot, so i wouldn't be surprised if hes got the 392!

3:73 REAR IS SPORTY TOO!

 

[tony72cutlass's']

3:73 REAR IS SPORTY TOO!

Agreed! I have a more aggressive rear end in my truck (3.73) than I do in my olds (2.73 peg leg) LOL