Diesel Mileage

[Mtelkman]

My old 7.3l gets 10-12 towing and around 20 when not. I may be one of the few but on my older truck I really like to use an additive. It makes a huge difference in making the engine quieter. I don't notice it help the mileage much but a smoother quieter running diesel can't be a bad thing. FWIW, my truck is tuned and modded.


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[goduc]

You might take it in and have it reflashed. Maybe it's regening too much. While I tow less weight than you I get 11.5-12.3 towing our 5er. I also get 17-18+mpg on the hwy running 55-70mph. Towing I run 55-65mph. I have a 12 2500 CTD with 3.73 gears. I realize you have the DRW version but your mpg seem a little low running empty. I can tell when the trucks in regen if I'm cruising on the freeway. If I check the EVIC for mpg it will be around 14 when in regen and then it jumps to 17+ when the regens over.





http://puredieselpower.com/dodge-pro...-egt-sims.html


http://puredieselpower.com/dodge-pro...with-bung.html


Most guys just run a code reader to delete the CEL that you MAY get.
If you're in a state that requires EPA testing then you can't do this.


You can also do a SIMs delete. Take the DPF off and replace it with a thru pipe, add the SIMs and the ECU will think you don't need a regen. MPG will increase a little. But the best part is your oil will stay brown and your OCI will go to 5000 miles+


http://www.cumminsforum.com/forum/20...e-what-do.html

[TURBS]

When I had dpf on my truck it regenerated right @ 350 - 400 miles almost like clockwork

TURBS
08 duramax tuned n modded, 32bhok Sabre
2015 camping "2 nights"

[stevewise]

I have 6.7 Ford same 377FLIK and get about 10 towing 17 not towing.

[jtstromsburg]

2006 GMC 3500 CC drw-empty I get 18-21 hwy. Can't wait to row with it. Don't feel too bad. With my previous f250 v10 Gasser, i got 12 empty and 4-5 towing... If I get 10 towing, I'll be ecstatic

[TURBS]

Originally Posted by jtstromsburg

2006 GMC 3500 CC drw-empty I get 18-21 hwy. Can't wait to Row with it. Don't feel too bad. With my previous f250 v10 Gasser, i got 12 empty and 4-5 towing... If I get 10 towing, I'll be ecstatic

You got the amphibious gmc?

TURBS
08 duramax tuned n modded, 32bhok Sabre
2015 camping "2 nights"

[TURBS]

Just wondering case u can't row one

TURBS
08 duramax tuned n modded, 32bhok Sabre
2015 camping "2 nights"

[camper1999]

Originally Posted by TURBS

Tuned and modded 08 duramax.
9-10 towing 14,000 lbs.
11-12 towing 7,000 lbs
19-20 not towing

TURBS
08 duramax tuned n modded, 32bhok Sabre
2015 camping "2 nights"

Almost the same here:

11-12 towing 12,000
20-22 not towing highway

[wire1946]

about the same 2013 towing 10-12 open road 20

[Blackhat6mike]

Originally Posted by TURBS

Tuned and modded 08 duramax.
9-10 towing 14,000 lbs.
11-12 towing 7,000 lbs
19-20 not towing

TURBS
08 duramax tuned n modded, 32bhok Sabre
2015 camping "2 nights"

X2 with TURBS
I get 12-13 towing 11,500
19-21 not towing
17-19 average around town

2013 Silverado 2500HD Duramax/Allison w/tuner. 3.73 gears

[Computer Nerd]

I concur with Turbs. I have a 2014 Silverado 3500 Duramax and a 13500 Sandpiper. I get 10-11mph pulling the 5ver and 19-20 without


Computer Nerd
2014 Chevy Silverado 3500 HD Duramax
2016 Sandpiper 35ROK

[Mattpopp]

2012 F350 DRW 3.73 Gears 4x4
Very consistant 11mpg empty
7-8 mpg towing
towing is around 16,000lbs

[DDC]

I get 18 to 22 towing and 38 to 42 not towing, it is nice getting this kind of mileage.

[goduc]

Liters or gallons?

[richp]

Hi,

I have a totally stock 2009 Duramax with 93k miles, and tow a Silverback 33RL (rolling at 12,500#).

We're just back from wintering over on the Gulf Coast, and over 1,000 miles back to Illinois, I got 12 mpg at a steady 57 mph. Unloaded, I get a pretty reliable 18 mpg.

FWIW.

Rich Phillips

[muddyrode]

i,ve got to go with the chevy guys also, 10-11 when towing the 5ver 12,000
11-12 when towing my enclosed 14' trailer and anywhere fro 18 to 20 when not towing depening on how i drive it

[WEMig]

Originally Posted by Mattpopp

2012 F350 DRW 3.73 Gears 4x4
Very consistant 11mpg empty
7-8 mpg towing
towing is around 16,000lbs

Diesel or gas?

[Pitcrew18]

2012 3500 dually and I get between 10 and 10.5 towing and around 14 mpg around town.

[EmersonTT]

We have a 2014 diesel Jeep Grand Cherokee that we use to tow a 21 foot Rockwood 2109s. We have towed back and forth over the Rockies from Minnesota to Utah and several times to northern Minnesota. I also use the car to commute to work, 12 miles round trip, half of that being freeway, and we have taken a few long driving trips. We average 30 to 33 mpg with pure highway driving, 24 mpg commuting to work and between 15 and 17 mpg towing the trailer.

[Computer Nerd]

I just towed our 35ROK home from camping in a 25mph headwind and got 12mpg.


Computer Nerd
2014 Chevy Silverado 3500 HD Duramax
2016 Sandpiper 35ROK