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 > 6.7 Diesel Towing MPG

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Bionic Man

Colorado

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Posted: 03/22/19 10:08pm Link  |  Quote  |  Print  |  Notify Moderator

9-12. Hard to believe you would regularly get more than 12, unless you are going 55 MPH with no wind.


2012 RAM 3500 Laramie Longhorn DRW CC 4x4 Max Tow, Cummins HO, 60 gallon RDS aux fuel tank, Reese 18k Elite hitch
2003 Dodge Ram 3500 QC SB 4x4 Cummins HO NV5600 with Smarty JR, Jacobs EB (sold)
2002 Gulf Stream Sea Hawk 29FRB with Honda EV6010

deltabravo

Spokane, WA

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Posted: 03/22/19 11:23pm Link  |  Quote  |  Print  |  Notify Moderator

BayouBoys wrote:

I was curious what kind of gas mileage should I expect towing.


0, because if you put gas in it, you won't be going anywhere.



But, I'd expect 10-12 from a diesel (with diesel in the tank).


2009 Silverado 3500HD Dually, D/A, CCLB 4x4 (bought new 8/30/09)
2009 Arctic Fox 811 (bought new 11/9/09)
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Dave5143

Arizona

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Posted: 03/22/19 11:53pm Link  |  Quote  |  Print  |  Notify Moderator

I typically average between 10-11 MPG on my 2013 F250 towing a 34' travel trailer.


Dave & Mary

2012 Denali 289RK
Ford F250 Lariat Powerstroke 6.7L Diesel

memtb

Wyoming

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Posted: 03/23/19 09:12am Link  |  Quote  |  Print  |  Notify Moderator

BayouBoys wrote:

I was just blessed with a 2019 F250 Lariat with the 6.7l diesel. Never owned a diesel before. Planning a summer trip from New Orleans area to Atlanta area. I was curious what kind of gas mileage should I expect towing. I guess I am used to gas engines, where I have to plan my fuel stops carefully with at 35ft trailer.


Bayou Boys! Seeing your user name makes me want to dig out my Eddie Raven music. Then we’d have to move on to Doug and Rusty! [emoticon]

But to attempt to answer your question. Most of the diesels get comparable fuel mileage. With our 6.7 Ram (manual trans), towing a 20+K 5th wheel, we get around 9.5+ on an extended trip. Obviously, it is dependent upon your driving practices.... easy, slow acceleration, coasting to stops, keeping you speed @ 65 or a little under, will all help. Driving in traffic, pretty much negates all of the above suggestions! Enjoy your new truck, and your travels! [emoticon]


Todd & Marianne
Miniature Schnauzer's - Sundai, Nellie & Maggie Mae
2007 Dodge Ram 3500, 6.7 Cummins, 6 speed manual, 3.73 ratio, 4x4
2004 Teton Grand Freedom, 39'
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Grit dog

Black Diamond, WA

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Posted: 03/23/19 10:02am Link  |  Quote  |  Print  |  Notify Moderator

Around 30% better than gas engine.


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Second Chance

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Posted: 03/23/19 11:39am Link  |  Quote  |  Print  |  Notify Moderator

Truck in signature with 3.77 rear end towing 14K fiver. Average over the last 18K miles (coast-to-coast and gulf to northern border) has been 10.5 MPG. 38 gallon fuel tank means fuel stops about every 350 miles (keeping a little fuel reserve). Out west where things can be several hundred miles apart, I fill up any time diesel is available and the fuel gauge is under 1/2. Previous 12K miles were with a DuraMax... the average was the same!

Rob


U.S. Army retired
2016 Grand Design Reflection 337RLS
MOR/ryde independent suspension, disc brakes, LR G tires
PullRite OE 18K, Demco Glide Ride pin box
2012 F350 CC DRW Lariat 6.7
Full-time since 8/2015

hondapro

Central Pa

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Posted: 03/24/19 05:26am Link  |  Quote  |  Print  |  Notify Moderator

I average 10-12 towing my truck has the 3.55 rear gear


Steve
2016 F-350 6.7 Diesel
2015 Springdale 311RE

Grit dog

Black Diamond, WA

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Posted: 03/24/19 12:01pm Link  |  Quote  |  Print  |  Notify Moderator

It's a 450 mile trip. The mileage difference between your gasser and a new diesel will be significant on the display and a 48 gal tank of diesel will get u there nonstop, but the overall cost difference will be less than the beer required for the trip!

4x4ord

Alberta

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Posted: 03/26/19 05:49am Link  |  Quote  |  Print  |  Notify Moderator

I would expect about 8 mpg towing and 17 empty.


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mkirsch

Rochester, NY

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Posted: 03/26/19 06:02am Link  |  Quote  |  Print  |  Notify Moderator

With the difference in fuel prices being about 30%, a 30% increase in fuel economy is pretty much a wash. It will take millions of miles of towing to "save" any money.

Now that that's out of the way, you didn't buy it for fuel economy. If you had penciled it out, you were way ahead staying with the old truck. You bought it to PLAY. Quit worrying about fuel economy and go PLAY.


Putting 10-ply tires on half ton trucks since aught-four.

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