Mackenzie Gans
Active Member
2011 EL, I get 13-14 city and 16-17 highway. It all depends how heavy my right foot is.
Real world MPG results
- Thread starter dsmless
- Start date
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Listen 5 4 220,000 Mi on it the only thing I've done is put timing chain set up in it oil pump but I did go and have a computer tuned I went from 16 around town with AC on daily driving up to 18 out on the highway at about 75 I'm laying down 2122 depending on the ground level most of that came from the tune
GDIMammothTank
Active Member
Stock 2012 King Ranch Expedition 5.4 from El Paso Texas to Las Vegas Nevada got 18.8 for the whole trip of about 715 miles. Had all of our luggage in the back with the 60 part of the seat folded. Highest it got was 20.1 on flat areas, 17.8 on the hills. Mostly around 77-85mph
DeafBringer
Full Access Members
ccomputer keeps saying 11-11.8 mph average. I did the math via tripmeter and how much fuel was put in, get 16.2 mph. Not sure what's going on.
Update on my real world MPG’s.
Just came back from a elk hunting trip that included towing a popup trailer loaded with camping/ hunting gear and 14 gallons fresh water and 25 gallons on board gen purpose water. 4 peeps, 4 coolers full of ice. On top in the roof rack was a floor jack thats mounted to a skid, large propane tank, 2 popup canopies, 2 foldup tables and 2 5 gallon fuel jugs.
Went from 3000’ to 8500’ elevation. Once at the camp
Spot the trailer was setup and from there it was alot of 4lo crawling around.
Total milage was 560.6 miles round trip. Used 59.6 gallons of fuel so I got 9.4 MPG on this mixed driving trip. The onboard display tells me I got 10.4 MPG so at least the display has my back.
Do note that on the way back I had lost all the water weight but had 4 coolers full of meat. Also it was mostly down hill driving so that helped raise the average. Average speed was 65 mph on the freeway. And 45-50mph thru the mountain passes and less than 5mph while driving around on the hint.
Not that it helps any but I run 5w30 oil. Everything is stock. So looks like I will look into making an auxillary fuel tank to take up the spare tire spot.
Just came back from a elk hunting trip that included towing a popup trailer loaded with camping/ hunting gear and 14 gallons fresh water and 25 gallons on board gen purpose water. 4 peeps, 4 coolers full of ice. On top in the roof rack was a floor jack thats mounted to a skid, large propane tank, 2 popup canopies, 2 foldup tables and 2 5 gallon fuel jugs.
Went from 3000’ to 8500’ elevation. Once at the camp
Spot the trailer was setup and from there it was alot of 4lo crawling around.
Total milage was 560.6 miles round trip. Used 59.6 gallons of fuel so I got 9.4 MPG on this mixed driving trip. The onboard display tells me I got 10.4 MPG so at least the display has my back.
Do note that on the way back I had lost all the water weight but had 4 coolers full of meat. Also it was mostly down hill driving so that helped raise the average. Average speed was 65 mph on the freeway. And 45-50mph thru the mountain passes and less than 5mph while driving around on the hint.
Not that it helps any but I run 5w30 oil. Everything is stock. So looks like I will look into making an auxillary fuel tank to take up the spare tire spot.
15-16 hwy, 11-14 city
Slightly lifted, 33's with highway Michelins, regular length, 4wd, 190k mi
Try to run E85 if you can find it, at some point it was >$3 less per gallon around here. Makes all the difference. And imho the Flexfuel 5.4 runs better on E85 than gas.
Slightly lifted, 33's with highway Michelins, regular length, 4wd, 190k mi
Try to run E85 if you can find it, at some point it was >$3 less per gallon around here. Makes all the difference. And imho the Flexfuel 5.4 runs better on E85 than gas.
Bolt snapper
Full Access Members
Just returned from a 900 mile road trip with my '11 XLT. No lift, no mods. Got 18.9 on the way there, and a little over 18 on the way back.
Closer to home, an even split between in-town and highway is in the 14-16 range.
Closer to home, an even split between in-town and highway is in the 14-16 range.
GlennSullivan
Full Access Members
Just finished a 1295 mile tow trip i95 south from NY to FL. 2017 Standard Expedition Limited, HD Tow, 3.31 Rear. Open car trailer with total weight of 6400lbs. Target speed of 70-75 mph, Average MPG 13.4 on 93 Octane.
*** EDIT ***
The Above info was from the vehicles computer. Below is actual gallons used / miles driven information, which is lower. I noticed that the MPG was higher in flatter terrain areas of the trip.
1st fill up at 49,628.8
2nd fill up 49,906.3 22 gallons 277.50 miles 12.61mpg
3rd fill up 50,170.7 21 gallons 264.40 miles 12.59mpg
4th fill up 50,437.9 20.6 gallons 267.20 miles 12.97mpg
*** EDIT ***
The Above info was from the vehicles computer. Below is actual gallons used / miles driven information, which is lower. I noticed that the MPG was higher in flatter terrain areas of the trip.
1st fill up at 49,628.8
2nd fill up 49,906.3 22 gallons 277.50 miles 12.61mpg
3rd fill up 50,170.7 21 gallons 264.40 miles 12.59mpg
4th fill up 50,437.9 20.6 gallons 267.20 miles 12.97mpg
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What gear ratio do you have on the ssv? I am installing 35s on my Limited this week with 3.31.
Was wondering if you felt a power loss and how does it drive on the highway?
The rear gear is 3.73, honestly I have not floored it since buying it. It does pass great and does not feel slugish while passing.
This past weekend I went on a hunting trip and my thermostat got stuck open. Im sure this did not help my milage. However I just kept it in 4hi and put in 40 miles of trail riding on pretty good jeep trails. Temps hovered at 199* as noted on the FORSCAN app.
My 2011 XLT Expedition seems to roll more smoothly and with less resistance since I replaced the front hubs and front and rear brakes (120k) a couple weeks ago. The fuel mileage estimates on the cluster are in the 18.4 range. In the past few years, it's never shown above 16.5 mpg. Is it possible?
GlennSullivan
Full Access Members
Certainly possible, dragging on either the hubs and / or brakes could easily cause a 2mpg loss.
GDIMammothTank
Active Member
Recently did a trip from El Paso Texas to Alamogordo NM and got 21 both directions. Bone stock 2012 King Ranch 5.4l triton. Maybe it's the E88 eco Maverick gas? City is dropping pretty far but sitting at 17.3 for the last week or so.
GlennSullivan
Full Access Members
That is simply amazing for a 5.4. I'd like to know what difference between your 2012 and my 2011. Is your truck 2 wheel drive? What rear end?
My truck will get 17 and maybe 18 on the highway - depending on the terrain. When it was our primary vehicle, the highway / local average was 14.7. However, these days this vehicle spends most of its time on local roads with lots of stop and go driving and mileage is an abysmal 11.7.
GDIMammothTank
Active Member
Wish I could tell you what gear is in it. It is 2wd. I mean maybe it's the E88? I have had that stuff in my tank for a little over a month and it just loves it. Lots of power if you big toe the gas out of a parking spot. Sitting at 17.1 average right now. I just swapped the passenger side VCT solenoid and had that whole head redone too. Looking to slowly build a bullet proof engine for when the inevitable comes.
GlennSullivan
Full Access Members
Prolly the 2WD, less weight and rolling resistance. E85 or E88 should lower the MPG, in exchange for the lower price of the fuel. I'm thinking you have a 3.31 rear gear, but if you ever want to know for any reason, just follow the information below.
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Hi Guys, not sure this is the right place for this but here goes. 2020 exp Xlt tow package and 3.73 rear. Towing 25 foot Travel trailer. Vehicle Scale weight with 2 passengers 6080, loaded with trailer , Gross weigh 13560, steer axle 7340, trailer axle 6220. Certified CAT scale. I am getting 7 to 8 MPG. My questions are what am I doing wrong? Makes no difference what mode I run in. Handles well, weight Distribution hitch.
Thanks any input is appreciated.
Thanks any input is appreciated.
GlennSullivan
Full Access Members
I believe you did not have the vehicle positioned correctly on the scales when you weighed your rig. There are 3 scale pads on the CAT scale. Front wheels (steer) on furthest forward (1st) pad, back wheels (drive) on middle (2nd) pad and both (or all 3) trailer wheels on furthest back (3rd) pad. You should get 4 weight readings: Steer, Drive, Trailer and Total.
I have a 2017 with HD tow and 3.31 rear axle. When I tow, I use premium fuel and depending on terrain, I get somewhere between 12 and 13 MPG. Towing the trailer empty, I get 15 to 15.5 and highway driving with no trailer I get 20-21.
The gross weight towing with my rig is not much different than yours. I would think that your relatively poor mileage is due more to the "brick wall effect" of the front of the travel trailer being pulled through the air and your 3.73 axle ratio than the weight you are pulling. Do you have pics of truck and trailer together?
How high is the front of the trailer and what does the face of it look like?
Without the trailer connected, what mileage are you getting on a road trip?
When towing are you using premium (93) fuel?
My vehicle
Trip 1 - Car more forward
Steer Axle 2980
Drive Axle 4680
Trailer Axles (dual) 5720
Total Weight Truck, Trailer and Car 13,380
Trip 2 - Car more rearward
Steer Axle 3060
Drive Axle 4520
Trailer Axles (dual) 5900
Total Weight Truck, Trailer and Car 13,480
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Thanks for the reply. I may not have had the trailer positioned properly but I am a new bee to scales. Trailer height is 10.5 with a slopped front Jayco 2022 Jay Feather. No pictures but I will get some. I thought the 3.73 axel was the proper axel for HD towing. I get 20 to 21 mpg on a road trip not towing. Not running premium Gas.
Regards, Stan
Regards, Stan
GlennSullivan
Full Access Members
Prior to 2018 model year the HD tow package came standard on Limited and above models and did not dictate axle ratio. In order to get HD tow on 2018 and newer you needed option package 536 which included the 3:73 axle ratio with eLSD. My 2017 Limited HD Tow came with 3:31 open rear, tows great and as stated above gets decent mileage doing it.
Looking at a picture of your model trailer, I think the majority of your mileage reduction is pulling the brick through the air, but moving to 93 fuel when towing will improve your mileage some.
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