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Post your fuel economy while towing


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07 2500 HD extended cab short bed, 3.73, 6.0 gas, towing around 9.5K   flat ground between 9 and 10   hills etc 7-8   I'm not driving 55...

Dang that is a beast of a trailer. Definitely would be getting a weight distribution system and anti-sway set up on that.

2008 Sierra 2500HD 6.0 gas and 4.10 pulling 33 ft 8500lb, I got right at 8 mpg.

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2015 Chevy 2500 HD Crew Cab 4 x 4 My experience;
Here is my experience with towing my 33ft Travel Trailer (9500 lbs) with this truck. It tows easily at whatever speed you set the cruise at, what I never thought thru was where the torque band is on this truck. It will select whatever gear is needed to pull the load, this sometimes results in driving in third gear up hills at 4200 rpm. It rarely would shift up into 6th gear and would not stay there long even on the slightest uphill. This all resulted in an average MPG of 6.9 on my 1300 mile trip to Florida. Encountering a strong headwind coming home it would still pull no problem at 66 mph but it got 5.8 mpg into the wind. Around town it gets 11.6 MPG driving very easy. disappointed by MPG.
What was your MPG towing your trailer?

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2015 Chevy 2500 HD Crew Cab 4 x 4 My experience;
Here is my experience with towing my 33ft Travel Trailer (9500 lbs) with this truck. It tows easily at whatever speed you set the cruise at, what I never thought thru was where the torque band is on this truck. It will select whatever gear is needed to pull the load, this sometimes results in driving in third gear up hills at 4200 rpm. It rarely would shift up into 6th gear and would not stay there long even on the slightest uphill. This all resulted in an average MPG of 6.9 on my 1300 mile trip to Florida. Encountering a strong headwind coming home it would still pull no problem at 66 mph but it got 5.8 mpg into the wind. Around town it gets 11.6 MPG driving very easy. disappointed by MPG.
What was your MPG towing your trailer?post-141558-0-24731900-1427341494_thumb.jpg

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It would be nice if GM made the 6.0L run on 4 cylinders when it doesn't need all of it ponies. My gets about 10-11 around town. So not much has changed in the last couple of years as far as fuel mileage. Of course that is because the FEDs have not man dated any improvements in HD trucks yet. It is coming tho. I just read an article where a semi has been developed that will get 12mpg pulling a full load. I do not need more horse power just better mpg. My Ford Fusion averages 35.8 mpg with a 1.7L turbo. and it has plenty of get up and go. So maybe a smaller turbo engine would be better in the HDs.

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2015 5.3 NHT around 8600 lbs 35ft travel trailer. Took a trip to Disney this week. No faster than 65. Pic says it all...

 

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Sent from my phone using some app!

Edited by carthman
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1996 4x4

5 liter

nv3500

3.73

oil cooler, functioning factory bypass with billet filter (I would not have bothered without that factory relief working).

 

Towing a 1987 subaru, car dolly. Advice to keep it out of overdrive, had to stay at car dolly limit of 55 anyway.

36 miles highway, 16 miles back road. 22mpg.

 

it is nearly the same loaded or empty. I bought it in january, have not seen spring weather yet.

a recent 60F day has it in the middle 20s mpg. Lugging like a tractor trailer @ 2100 = 72mph.

 

I also found the tranny shaft is 84mm. Not exactly small is it. Not sure who or what makes a wimp of those..but they must be mentally challenged with gear fluid of the wrong kind. I'd tug at a kenworth with it...factory gm fluid.

Edited by barry G
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  • 1 month later...

2014 Double Cab 4.3 EcoTec 3.23 gears all stock. I get 13.2 while towing my 23' bay boat at 60-65mph and 10.8 to 11.2 if I go faster. I wish it had 3.73 to 4.11 gears to keep the RPM's up. I have to lock it in 4th gear to stop the gear hunting on hilly ground. I still wish I had the 5.3 at times.

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Typically average 11 mpg pulling various campers with 2010 GMC 2500 6.6 diesel. Winter economy is worse. Summer better. Last few trips over 12 mpg. My dually does about 1.5 mpg worse.

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