Arkas

Out of curiosity, what type of mileage are other 2018 F150 5.0 owners getting?
My 2018 F150 Lariat with 600kms is only averaging 15L/100km or around 15 MPG?!?!?
This is mix city/highway driving in eco mode
Seems low to me. I know it should get a little better once I get a few miles on it, but I don't think it will reach 20 mpg...ever
My 2015 Ram 1500 with the 5.7L was averaging 10-11 L/100 km's or 23ish MPG

peepsnet

I have been up to 18.?/mpg with effort.

15-16/mpg is normal.

I have 1000 miles on the truck

royboyz

17.3 mpg (on the dash lie-o-meter) with ~25,000 miles. That includes a few winters with cold weather.
3.73 gears and 33" tires.

ZeroTX

Mine is a '17, so not exactly the same engine and a totally different trans, but my lifetime mpg is 14.5mpg with 7,000 miles. However, I drive a lot of very very very very very short trips.... like 2 mile trips. So that's horrible for gas mileage. I can get up to 21 on the highway, but if there's any wind at all, it drops quickly.

MoltenF150

We get 19.6 combined on 20" wheels with the 3.55 diff. To get over 20 mpg requires 18" or smaller wheels or 3.31 diff. If you have both you might break 21mpg. Might.

aliasmax

I would kill to get 15mpg on my truck. I know it's not an 18 but on my 17 f150 5.0 mostly highway I am getting 9.8mpg. Dealer says it is normal though, go figure

Arkas

Normal??? LOL
Maybe if you were towing a trailer...LOL

Race Red Rob

I have a RCSB and so far I'm averaging 21.21 actual, not by the 'lie-o-meter'. Mostly urban driving -

Xsbank

I have a '16 Lariat screw with a 5.0 and I get 15.4 l/100 km. 3.73 axle 4x4. Hankook 20" tires

Brettlil17

Mine is a 2016 5.0 6 speed fx4 with 3.31 gears, and 33's. I also have the speedo recailbrated for the tire size. I have a CAI and MagnaFlow exhaust rest is stock. I get 16-17 mpg around town. Only time im on the highway im pulling a 4k pound trailer and i get 13-14 mpg on the highway. I dont pull it around town so i dont know what it gets pulling it around town. This is according to the mpg estimate on the dash, i havent really measured it to tell exaclty, it doesnt really bother me enough to do so.