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

Ebrou

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Mobile, AL
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2021 F150 XLT SCREW 5.0L Sport 4x4
5.0l with 3.73 rear end

659 miles
Trip 1 set since factory new all time average 17.4
Trip 2 set at First fill up: 22.2 Hwy and 18.4 city. (highway was strictly highway travel 200 miles at 73mph) the city is variable combined highway since first fill up, and now a week of city travel)

I am on second tank of fuel which includes fill up from dealer.
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Tizzzo

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I put bigger 34inch tires on mine and a 2 inch level and I am pleasantly surprised. I got 19.3 mpgs on a 2 hour highway trip and I’m averaging just under 17pmgs city right now. Not bat at all.
 

DeliveryJay

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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.....
14.0 L per 100 KMs city... normal driving... better than my 2019 which was 16 L per 100
 

Lpetters84

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I’m at 2k miles. All stock and 87 octane. I’m only at 16.7 mpg but I’m 75% city roads. I will say each time I drive 30 miles on the hwy to my parents house it goes up by .1 and stays there.
 
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SonnyDigs

SonnyDigs

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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.....
Update:
I'm now getting 17mpg city..
I’m at 2k miles. All stock and 87 octane. I’m only at 16.7 mpg but I’m 75% city roads. I will say each time I drive 30 miles on the hwy to my parents house it goes up by .1 and stays there.
Next time start a new trip when you get on the Hwy.
It takes a long time to average out and get a true hwy mileage without it all being hwy and resetting the trip.
 

dgood13

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I average about 17 city and 22 highway. Took a trip this summer averaging about 75-85 mph. a lot of 85 mph. went over 600 miles on a tank of gas. average over 22 mpg. filled up in Longmont CO. and drove to Omaha, NE without filling up. said i still had 100 miles to E
 

Seavee33

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2021 F150, FX4, V8, 3.31 GEARS, 36 Gal fuel tank, 2500 miles, line-x, 34" Nitto RG 285/60/20.
I drive pretty moderate not grandpa and not heavy foot.
I'm Avg around 15 MPG with 50/50 city/hwy.
 

Bryan Simon

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Just creeped up on 20 n the lifetime meter.
The meter has been corrected to read to read just a hair low.
8000 miles, mostly rural, unencumbered driving between 50 & 80 mph
 

Seavee33

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Just creeped up on 20 n the lifetime meter.
The meter has been corrected to read to read just a hair low.
8000 miles, mostly rural, unencumbered driving between 50 & 80 mph
any upgrades on the truck or bone stock?
 

Lex_310

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2021 F150, FX4, V8, 3.31 GEARS, 36 Gal fuel tank, 2500 miles, line-x, 34" Nitto RG 285/60/20.
I drive pretty moderate not grandpa and not heavy foot.
I'm Avg around 15 MPG with 50/50 city/hwy.
The only difference between me and you is i have 3.73 gears and my average is 13.5 LMAO
 

Seavee33

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I’m wondering if a new CAI and cat-back would help a bit?
 

Seavee33

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The only difference between me and you is i have 3.73 gears and my average is 13.5 LMAO
I almost went with 3.73 gears but this 3.31 was the only one on the lot.
 

SILVERBULLET69

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What my lie o meter showed after a fill up and an oil change a week prior. Hand calc was only .9 mpg diff

381C1E5C-8410-4965-B347-3993E05975D1.jpeg
 
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