When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I've got a 16 F150 Screw 2.7 Eco 2w dr. 3.31 rear axle. Took it to Virginia with loaded bed and three dogs. In a head wind most of the way due to the hurricane we just had and got 25.3 miles per gallon on 89 octane. With a tail wind I can sometimes reach 26mpg. This is traveling at 70mph. Checked miles and gallons used and the truck meter is on the money.
So I have a 2018 F-150 Lariat w/6" lift kit running Nitto Grappler II AT 35" x 12.5 tires all around. No other mods. My gas mileage in the city varies between usually 14-15, expected. Here is my problem, just got back from San Antonio from AZ about a 1600 mile trip and my MPG average was just below 12 mpg!! In the words of Vince Lombardi, "WHAT THE HELL IS GOING ON!" OH YEAH HAVE A 5.0 COYOTE ENGINE
What speed where you traveling? Over 70 mph reduces the economy drastically. Your lift and big tires don't help either!! But I bet your truck looks bad***** and tore the interstate! That should be enough joy and satisfaction right there!!!
That might be an answer as the speed limit is 80 mph east of Van Horn Tx until almost into San Antonio!! And I was on cruise at 80 that whole way and back!! Thanks.
That might be an answer as the speed limit is 80 mph east of Van Horn Tx until almost into San Antonio!! And I was on cruise at 80 that whole way and back!! Thanks.
There you go. Lifting and high rolling resistance tires defeat the aerodynamics Ford built in for higher speed efficiency. I was seeing 21 in mine @ 80. I am REALLY liking my new RWD Platinum, 20-22 MPG consistently, and I aint babying it either.
Went from Florence, SC to Louisiana yesterday on one 36 gal. tank with cruise control set at 68 in a 70 zone. Here's the read out during that cruise - and the meter has been calibrated to hand calc so it's accurate:
If you just cruise along, and don't have to stop and go, these trucks will get amazing MPG. By the next fuel up, it had climbed a couple more tenths than that, and was only off by .1 mpg from Fuelly - and the meter was less by .1 than the hand calc!
Fuel economy on this 2018 pleases me greatly. I think 3.55 gears might be the "sweet spot" with a 10 speed for mpg?
I think you are right on the gearing. The 18 I have now is getting a bit better than my 14 with 3.15 gearing did. When not towing, mine has been consistently above 20 MPG, closer to 21 even with head winds. I have NO complaints in the fuel economy department, very pleased with it in fact. The only painful part is filling the 36 gallon tank every week. Getting 760 miles between fills though!
So I have a 2018 F-150 Lariat w/6" lift kit running Nitto Grappler II AT 35" x 12.5 tires all around. No other mods. My gas mileage in the city varies between usually 14-15, expected. Here is my problem, just got back from San Antonio from AZ about a 1600 mile trip and my MPG average was just below 12 mpg!! In the words of Vince Lombardi, "WHAT THE HELL IS GOING ON!" OH YEAH HAVE A 5.0 COYOTE ENGINE
With a 2017 5.0 6 speed and that (just under 12) is what I get when towing our 5,000 lb. trailer. Just around town without the trailer I get 14-15, commuting to work mixed city/freeway18-19, and on a road trip of 800 miles each way was getting 19-20. Your tires are more blocky than my stock Wranglers, but shouldn't affect it by more than 1-2 mpg. I wonder if the size is messing up your odometer readings.
Just got back from another CL run to get a new tailgate for the truck! It was close to 200 miles round trip, and I filled up when I got back and here's the numbers - 215.5 miles / 10.110 gallons = 21.32 mpg!!! That's the best ever!
Went from Florence, SC to Louisiana yesterday on one 36 gal. tank with cruise control set at 68 in a 70 zone. Here's the read out during that cruise - and the meter has been calibrated to hand calc so it's accurate:
If you just cruise along, and don't have to stop and go, these trucks will get amazing MPG. By the next fuel up, it had climbed a couple more tenths than that, and was only off by .1 mpg from Fuelly - and the meter was less by .1 than the hand calc!
Fuel economy on this 2018 pleases me greatly. I think 3.55 gears might be the "sweet spot" with a 10 speed for mpg?
UPDATE: Round trip Denham Springs, LA to CHI, IL (didn't have to drive on city streets but a couple of miles while in CHI) - Meter said 24.0, fuelly (hand calc) said 23.8 mpg. Best tank was ~800 miles (Champaign, IL to Denham Springs and no alarm). Set the cruise at 68 in the 70 zones, speed limit otherwise. Beats my 2016 RWD with 3.15s considerably. This one's a keeper, I think.
Doing 80 on cruise gets 11.5 MPG, anyone else with a similar setup getting the same gas mileage? 70-75 MPG gets me 13-15MPG, anyone else getting these MPG with the same/similar setup? City driving gets 13.5-14.5 MPG
10-04-2018, 05:02 PM
