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Old 10-10-2021, 12:12 PM   #21
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Quote:
Originally Posted by TRD View Post
Ok, now what gas octane do you use? That makes a difference on mileage with my 2019 f150 E.B.
Consistent with 87. I’m never really empty when it’s becoming time to tow…or all of the way empty when I’m done. Haven’t figured out how I could say that I got different results on a whole tank of an alternative. I guess I could plan a much longer trip to solve this. Hmm.

Share the differences you mentioned…??
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Old 10-11-2021, 04:11 PM   #22
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Plan Man: What's your differential's ratio?

Our 2015 (see specs below) running on 87 octane averages about 9.5 - 11.0 on the right coast depending on terrain. All calculations are done via calculator from pump receipts of gallons used and vehicle's odometer. The MPG estimates shown by our F-150's computer are 10%-15% too "optimistic".
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Old 10-11-2021, 04:25 PM   #23
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The MPG estimates shown by our F-150's computer are 10%-15% too "optimistic".
Here's an easy way to correct your display

https://www.f150forum.com/f118/fix-i...inutes-421912/
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Old 10-11-2021, 04:35 PM   #24
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Interesting link Mike! I have not compared to manual calculated numbers yet. On my 2015, the DTE (distance to empty) calc can be changed to DTE Towing, which seems to be pretty accurate for planning a fill up.
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Old 10-11-2021, 04:59 PM   #25
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Originally Posted by Mike134 View Post
Here's an easy way to correct your display

https://www.f150forum.com/f118/fix-i...inutes-421912/
Excellent! I'll have to try this. Thanks, Mike!

NJKris - If the DTE towing is based on the unadjusted MPG, this adjustment should make that more accurate, too? Of course, this implies that the computer can keep the towing MPG separate from the non-towing MPG...Hmmm.
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Old 10-11-2021, 05:15 PM   #26
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Perhaps it would. I do know the unadjusted Towing DTE has kept me from ever getting into trouble with planning pit stops.
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Old 10-13-2021, 10:48 AM   #27
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Originally Posted by Plan Man View Post
Attachment 264148

Just returned from a one month trip. We tow a Rockwood Roo 233S. About 5800 pounds. My 2018 F150 has a topper with GVWR of 1619. I am sure we were right at that or 200 ponds over or under depending on the day. We started in MN then down to Arkansas, Alabama, Georgia, DC then to Shenandoah and back home. Mostly flat until we were in Shenandoah and home through West Virginia. Kept it in tow haul mode and rarely traveled over 60 even in interstates. Averaged 10.4 mpg over 4900 miles. About 500 were without the trailer. I was pretty happy about the gas mileage. The truck handled exactly as expected and we had no issues.
I have just returned from a Cross Canada tour, Mountains and Prairies, 2018 F150 V8 10 speed, towing a XLR Boost 5000lb, dry weight well over 7000 lb loaded. Truck has generator etc so full bed .My average was 11.2 miles per US gallon. I do not exceed the speed of my tires.
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Old 10-13-2021, 10:53 AM   #28
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Quote:
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I have just returned from a Cross Canada tour, Mountains and Prairies, 2018 F150 V8 10 speed, towing a XLR Boost 5000lb, dry weight well over 7000 lb loaded. Truck has generator etc so full bed .My average was 11.2 miles per US gallon. I do not exceed the speed of my tires.
Just a quick question: was the 11.2 MPG based on the consumption data from the F-150 or calculated from the gas pump data?
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Old 10-13-2021, 11:14 AM   #29
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Just a quick question: was the 11.2 MPG based on the consumption data from the F-150 or calculated from the gas pump data?
From the Ford dash Computer. Which I have checked in the past and found it to be accurate.
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Old 10-13-2021, 04:20 PM   #30
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Quote:
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I have just returned from a Cross Canada tour, Mountains and Prairies, 2018 F150 V8 10 speed, towing a XLR Boost 5000lb, dry weight well over 7000 lb loaded. Truck has generator etc so full bed .My average was 11.2 miles per US gallon. I do not exceed the speed of my tires.
If you exceed the speed of your tires…are you not in an airplane?!?

11.2 mpg is great. Congrats.
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Old 10-13-2021, 04:29 PM   #31
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Quote:
Originally Posted by Dennis88 View Post
I have just returned from a Cross Canada tour, Mountains and Prairies, 2018 F150 V8 10 speed, towing a XLR Boost 5000lb, dry weight well over 7000 lb loaded. Truck has generator etc so full bed .My average was 11.2 miles per US gallon. I do not exceed the speed of my tires.
Jealous, I want to see some of Canada. When old lady retires, I'm hoping to go to Newfoundland and Nova Scotia.
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Old 10-13-2021, 05:26 PM   #32
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Barely above 8 mpg with my 2014 F150

Am envious of the numbers am seeing here.

Towing 2205S (est. 6.5k lb loaded) with 2014 F150 Super Crew 2WD, Ecoboost 3.5L, wife and I in the cab, just normal weight in the truck ...

... and yet we struggle to get to 9 mpg even on level highway. And I do not drive with heavy foot, rarely/never over 65 mph.

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Old 10-13-2021, 05:54 PM   #33
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Andy, that's over 50% more than my payload with a 20' trailer. And your trailer width is 96 inches, that's 16 inches wider than the normal 80 inch width of the truck. Finally, your trailer is 10'11" high, vs a trailer like mine which is only 9'7" (despite off road lift package), so your have all that extra frontal area battling the air as you pull it.


As I daydream about getting a trailer one day 'just 5 more feet' longer, I am cognizant of what a mileage licking I would take with larger frontal area. I shake my head in disbelief when I see guys towing a trailer that sticks above tow vehicle cab 2.5x higher than the height of truck roof line.


That's why I'm scoring 2.5 to 3 mpg more than you, sounds like our driving habits are similar.
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Old 10-13-2021, 06:51 PM   #34
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I use to get 12-13 and sometimes 14 out of my old 150 Lariat 5.3 pulling our 26' Jayco 6600lbs, but I stayed out of Tow/Haul mode as much as possible.
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Old 10-14-2021, 06:39 PM   #35
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2015 XLT SC 4wd cap 3.31, towing FR 2205s 5500 lbs 9 -9.5 mpg.
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Old 10-14-2021, 07:32 PM   #36
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I switched from a 2018 Ram EcoDiesel to a Ford F150 PowerBoost in June. The Ram got better fuel economy towing than the Ford. In taking camping trips with the Ford to Acadia National Park in Maine and Atlantic Oaks campground on Cape Cod from our home in central Massachusetts, I've averaged 8.0 mpg travelling at 65 mph and 10.0 mpg travelling at 55 mph with the Ford. The Ram would get about 12 mph at 65 mph. That said, I average about 24 mpg with the Ford without the trailer, city or highway. The Ford has plenty of power for towing with 570 lb/ft of torque. The on-board generator is a huge plus and the reason we purchased the Ford. We've added a gen-tran panel to our house and will be able to power our house with the truck if we lose power, not to mention the camper.
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Old 10-14-2021, 09:52 PM   #37
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I get 10 to 12 mpg driving 55 to 60 mph towing 26’ 5” TT.
04 F150 4.2 with many upgrades for towing.
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Old 10-14-2021, 10:37 PM   #38
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My 2011 F 150 4 WD, Super cab gave me a towing MPG of 10 to 12, depending on whether I was on flat or mountain roads. The trailer had a dry weight of 7,400 lbs. With out the trailer, I averaged 20 to 22 mpg. The engine was a 5L V 8. Most of my towing was in the northern California Sierras.
I'm not sure what kind of magic you possess, but that's pretty impressive. My 2011 F-50 4WD SuperCab 5.0L averaged about 7 to 8 MPG pulling our trailer with a dry weight of 5,200 lbs--about 6,800 lbs loaded. I could manage 18 MPG when not towing and empty if I kept it at 65 MPH or less.
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Old 10-15-2021, 04:07 AM   #39
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I'm getting the 10-12 mpg in tow/haul mode that others had noted but the roads I travel are pretty flat and paved smooth. I'm also getting 21+ without the TT. Results are right where I expected when I bought it. Very happy with my choice.
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Old 10-15-2021, 05:07 AM   #40
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We have clocked about 2500 miles on the 2021 F150, 5.0, 3.73 gears, 4X4 pulling the Surveyor 19 RBLE, 9.5 to 10.5 calculated, the lie-o-meter is about .4 tenths high. These were mostly interstate miles 65 to 68 mph. Towing behind the 2020 Explorer with the 2.3 gained about 1mpg with speeds toping out at 65mph. The Surveyor scales just under 5k ready to go. Running premium fuels gives a slight bump, but less down shifting on the hills. In THM I typically lock out 9 & 10 sometimes 8. (all the overdrive gears) In 7th (1:1 gearing) it will hold most hills without downshifting. I agree that the frontal area and speed are the largest influence on mileage.
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