Trucks & Trailers - Towing MPG in a duramax?

THE HULL TRUTH is the world's largest FREE network for the discussion of Boating & Fishing. Whether you're researching a new boat, or are a seasoned Captain, you'll find The Hull Truth Boating & Fishing Message Forum contains a wealth of information from Boaters and Sportfishermen around the world.




View Full Version : Towing MPG in a duramax?


Abel
03-22-2011, 10:56 AM
Anyone towing 7500-8500lbs of boat down the higway with a Duramax or equvilent? More specifically, towing a 25 Carolina Classic? What kind of milage you seeing?


triguy7
03-22-2011, 11:09 AM
8.3 or so. This was on a flat interstate (I 10) LA to AL two weeks ago. Boat had 200 gallons of fuel, no tackle/etc.

Abel
03-22-2011, 11:11 AM
OUCH??? I've talked to guys pulling 15-20K say they still get 10-12.


MakoMyDay
03-22-2011, 11:11 AM
I got 9 towing my 31 CH on the Interstate. I had a 2008 Dmax 4x4 crew. Now I have a 2011 f250 powerstroke -- it also gets 9

MakoMyDay
03-22-2011, 11:12 AM
OUCH??? I've talked to guys pulling 15-20K say they still get 10-12.


not possible unless there's no wind drag

renner
03-22-2011, 04:47 PM
I get 10-11 towing my 33T from N.Y. - Fla keys, i stay under 65mph , I have 3500 srw cc lb. I keep it in 5th gear in tow/haul mode and use cruise control.

jaysil123
03-22-2011, 04:56 PM
towed a my 29 sea vee to the keys got right at 10mph stayed at 70 on the highway.

AIKO AIKO
03-22-2011, 05:10 PM
Emissions Duramax will only get 8-10 towing a decent size boat...pre emissions may get a little better.....

Sportfisher236
03-22-2011, 05:16 PM
I know you said duramax But ...... Towing that kind of weight this is my experience
2003 F350 dually 4x4 7.3 powerstroke 9.5mpg
2005 F250 4x4 6.0 powerstroke 11.2mpg
2008 F250 4x4 6.4(emission) powerstroke 8.9-9.0mpg

jeffro22
03-22-2011, 05:18 PM
OUCH??? I've talked to guys pulling 15-20K say they still get 10-12.


Maybe if its aflat trailer with a low load. towing a boat with a pilot house or center console creates a lot of wind resistance and drag

WolpackVO
03-22-2011, 07:42 PM
towing 8k i got 8.4 in my 2009 with 33inch tires and 9.0 in my dads 2010 with stock tires....my toyota gets 10....strange...

Back-in-Black
03-22-2011, 08:11 PM
I get 10 mpg in a 2002 dmax towing 10,000 lbs at 70 mph.

batt3669
03-22-2011, 08:27 PM
I get 11.8 at 65mph
10.3 at 72-75
2007 Duramax with AFE stage 2 cold air intake DPF delete and Edge w/Attitude

kmo
03-22-2011, 08:33 PM
I get 8-10 mpg depending upon wind, hills, speed. 2007 duramax sierra classic dually, 4WD, crew cab. Towing approx 12,500lb of boat an trailer. On flat land of south florida, without a headwind, towing at 70mph, it is a steady 9 mpg.

163331

RingLeader
03-22-2011, 08:46 PM
I get 9mpg towing 10K lbs tri-axle rig. I try to keep 65-70 mph on the highway.

captbron
03-22-2011, 10:15 PM
2007 Duramax towing 26 glacier bay fully loaded close to 10k seems to get about 10mpg at 70 mph. If you drop to 55- 60 it's closer to 12.

Abel
03-23-2011, 07:38 AM
That's abotu what I was figuring. Figure i should get about 12 till I hit Edmonton, then 8-9 thru the rockies to AK.

Snowwolfe
03-23-2011, 10:38 AM
Abel,
What are you towing back to Alaska? When is your trip?

Abel
03-23-2011, 11:18 AM
Looking at dragging a 25 Carolina Classic. Leaving Michigan Memorial weekend, Homer about 8 days later, then ferry to Kodiak.

Snowwolfe
03-23-2011, 12:19 PM
Looking at dragging a 25 Carolina Classic. Leaving Michigan Memorial weekend, Homer about 8 days later, then ferry to Kodiak.


I am driving down to WA and back mid April to haul back a inboard jet boat. Drop me a message if you need any highway updates, fuel prices, etc. before your trip.

Classic25
03-23-2011, 12:41 PM
'07 LBZ+25' Carolina Classic 11.5 on level highway. 55mph bumps that up to almost 12.5. Anything above 65 drops it to the single digits. Stock engine.

Your mileage may vary... ;)

https://lh6.googleusercontent.com/_e48TVPtuy_0/TYpNG5sk1QI/AAAAAAAABWM/p2MqQb_aWR8/s720/DSCN1501.JPG

rarebreed
03-23-2011, 01:59 PM
'04.5 LLY in a 2500HD, Diablo programmer set at 3rd setting ~+65HP. I average 10 to 11 MPG pulling my Regulator loaded with fuel and water and gear to Destin and PCB Florida.
Maclin

Fin-chaser
03-23-2011, 03:04 PM
When I was towing my 2900 Hydra Sport, I was getting 14.2 on average. This is side roads and highway average.

I have a 2007 (late model) GMC Sierra Duromax Crew Cab with an after market exhaust.

I routinely get 22 to 23 MPG on the highway when I am not towing the boat at about 68 MPH with cruise control.

Before the exhaust was installed I was getting an average of 19 MPG on the highway.

Fin-

s_ebels
03-23-2011, 05:07 PM
When I was towing my 2900 Hydra Sport, I was getting 14.2 on average. This is side roads and highway average.

I have a 2007 (late model) GMC Sierra Duromax Crew Cab with an after market exhaust.

I routinely get 22 to 23 MPG on the highway when I am not towing the boat at about 68 MPH with cruise control.

Before the exhaust was installed I was getting an average of 19 MPG on the highway.

Fin-

What exhaust are you using? All new from turbo back or just cat back.

s_ebels
03-23-2011, 05:14 PM
Made a trip in December pulling a gooseneck trailer 700 miles with two boilers on it. Total weight was around 11,500 pounds. About 200 miles of expressway speed and the rest of the trip was two lane roads at 55-60. Averaged 10.3mpg for the trip. Truck is a 2006 F-250 with the much maligned but so far utterly reliable 6L diesel.



Search Engine Friendly URLs by vBSEO 3.2.0