philh
Belleville MI
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Joined: 05/11/2015
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3.1 Gears, F350D. My fuel economy is directly related to speed. At 65 on flat land, 11.5. At 70 climbing the hills in TN, it gets as low at 9.5. Trailer is at GVWR of 12.6k.
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Remember, head winds or component of a head wind adds directly to your speed. 65 with a 20kt headwind is the equivalent of driving at 85 mph.
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Rollochrome
Fort Worth, Texas
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Joined: 12/30/2009
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I had a head/crosswind going from DFW to Lubbock a few weeks ago and averaged 7.
Coming back at night with a little tailwind, 11.
1999 Saved By Grace Alone Thru Faith Alone! Thank You Jesus!
2019 F-350 LWB 6.7 4wd XLT-FX4-3.31 on Michelin Defender LTX M/S
2022 3850BH Cruiser South Fork on Carlisle CSL 16
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Michelle.S
Western NY till fall, then Sebring, FL
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Joined: 01/11/2011
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Our unit is pushing 20K Lbs and my over all average with a Chevy is 10 to 10.5
2018 Chevy 3500HD High Country Crew Cab DRW, D/A, 2016 Redwood 39MB, Dual AC, Fireplace, Sleep #Bed, Auto Sat Dish, Stack Washer/Dryer, Auto Level Sys, Disk Brakes, Onan Gen, 17.5" "H" tires, MORryde Pin & IS, Comfort Ride, Dual Awnings, Full Body Paint
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joshuajim
Mojave Desert
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Joined: 04/29/2006
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I read your subject and I don’t think any Ford gets 350 MPG ??
RVing since 1995.
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Nv Guy
Reno NV
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Joined: 06/18/2017
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My '17 F250 6.7 averaged 9 MPG over 8K miles towing 67 MPH. 14 MPG With a tailwind, 7 MPG With a big tailwind.
My '20 F350 6.7 Delivered 10.5 over the same route.
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Cummins12V98
on the road
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Joined: 06/03/2012
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joshuajim wrote:I read your subject and I don’t think any Ford gets 350 MPG ??
Thought the same. Amazing how things become different by simply adding a "F".
2015 RAM LongHorn 3500 Dually CrewCab 4X4 CUMMINS/AISIN RearAir 385HP/865TQ 4:10's
37,800# GCVWR "Towing Beast"
"HeavyWeight" B&W RVK3600
2016 MobileSuites 39TKSB3 highly "Elited" In the stable
2007.5 Mobile Suites 36 SB3 29,000# Combined SOLD
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Cummins12V98
on the road
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Joined: 06/03/2012
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Nv Guy wrote:My '17 F250 6.7 averaged 9 MPG over 8K miles towing 67 MPH. 14 MPG With a tailwind, 7 MPG With a big tailwind.
My '20 F350 6.7 Delivered 10.5 over the same route.
May want to re read the end of the top sentence.
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johndeerefarmer
Texas
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Joined: 03/06/2011
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2020 Ford 6.7 SRW towing Grand Design Reflection 29rs fiver. Driving 70-75 I get a 10.5-11.5 mpg.
My old '16 6.7 F250 got about 1 mpg less. 10 speed and other things make the 2020 better. I have more power and better fuel economy. Only downfall is the '20 uses twice as much DEF as the '16
2020 Ford 350 6.7 PSD & 2017 F150 3.5 EB max tow
GD Reflection 29rs
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