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Mpg With 6.0 And 6 Spd

asylum575

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asylum575 Enthusiast

asylum575

Posted
Posted

I have a 2006 1500HD with the 6.0 and 4 spd. Love the power and ability, hate the 11-12MPG. I was thinking of going for a new 1500 crew cab with 5.3 and 6 spd.

Every so often the 6.0 3/4 comes in handy. This morning I picked up approx 2000lbs of concrete bags which a 1/2 ton couldn't do. I also tow a 7k dual axle trailer easily with my current rig and wonder about the 1/2 ton's ability.

How is the MPG on the new HDs with the 6 spd? I won't go for diesel. I currently average 11-12 around town and on road trips, I go up to 14-15MPG

wurgs Senior Enthusiast

wurgs

Posted
Posted

I have a 09 1/2 ton GMC All Terrain with the 6.0l, 6 speed and heavy duty towing package and get about 16 mpg average according to DIC. I tow a 7500lb camper ( the gas mileage drops then to 7-9) and have hauled a load of landscape rock of about 1500lbs with ease. Its got plenty of power to handle the things you are mentioning.

pm26 Senior Enthusiast

pm26

Posted
Posted
This morning I picked up approx 2000lbs of concrete bags which a 1/2 ton couldn't do.

 

Yes, it could. That's what utility trailers are for. :cool:

Wingnut Senior Enthusiast

Wingnut

Posted
Posted
This morning I picked up approx 2000lbs of concrete bags which a 1/2 ton couldn't do.

 

Yes, it could. That's what utility trailers are for. :cool:

 

 

I've put more than that in the bed of a 1/2 ton many times. :flag:

Ridgerunner30 Enthusiast

Ridgerunner30

Posted
Posted

I have an 09 2500HD GMC with the 6.0 and 6 speed. It is a great truck. I get 17 mpg empty on the highway at 70 mph. My local driving gets me about 15 mpg... but I live out in the sticks. I rarely drive in an urban location other than on an interstate passing through a city. I don't know what city gas miles would be.

crazydog Enthusiast

crazydog

Posted
Posted
I have a 2006 1500HD with the 6.0 and 4 spd. Love the power and ability, hate the 11-12MPG. I was thinking of going for a new 1500 crew cab with 5.3 and 6 spd.

Every so often the 6.0 3/4 comes in handy. This morning I picked up approx 2000lbs of concrete bags which a 1/2 ton couldn't do. I also tow a 7k dual axle trailer easily with my current rig and wonder about the 1/2 ton's ability.

How is the MPG on the new HDs with the 6 spd? I won't go for diesel. I currently average 11-12 around town and on road trips, I go up to 14-15MPG

 

According to the tuck computer, I get 18.7 average with my 2500 . ..

asylum575 Enthusiast

asylum575

Posted
  • Author
Posted

15 around town and 18 on the highway would be a great improvement. However, I was looking at the 5.3/3.73 with 6 spd in hopes of 17/18 around town and 20 highway. Getting a 1/2 ton AND a utility trailer is definitely and option. It would roughly be about the same price as a HD and I would have a softer ride. Good point, thanks.

I guess I wasn't thinking about a trailer since I already have a 20' enclosed trailer.

mguay1 New Member

mguay1

Posted
Posted
I have an 09 2500HD GMC with the 6.0 and 6 speed. It is a great truck. I get 17 mpg empty on the highway at 70 mph. My local driving gets me about 15 mpg... but I live out in the sticks. I rarely drive in an urban location other than on an interstate passing through a city. I don't know what city gas miles would be.

 

 

I have the same truck, bone stock and I am lucky to get 14.5 on the highway and 13 in the city.......do you have any mods????? I also have a 35ft fith wheel that I was gettin 11 when pulling it las year and can only get 7.5 this year. My dealer told me that between 7 and 14 is normal for that truck. My 05 Hd 6.0 with the 4spd had a hard time getting 12 on the highway.

Anyone have ideas on packages (exhaust, intake, programmers) that work great together? I was looking at the Banks Power Pack System http://bankspower.com/products/show/343/10 but I think I want something I can tune on the fly like an Edge.

Truckin2003 Enthusiast

Truckin2003

Posted
Posted

i have a 2009 2500HD with the 6.0 and 6 speed for a company work truck. The fuel mileage averages 13 mpg and thats with 90% highway driving.

Shatterz Enthusiast

Shatterz

Posted
Posted
i have a 2009 2500HD with the 6.0 and 6 speed for a company work truck. The fuel mileage averages 13 mpg and thats with 90% highway driving.

 

Yea this is more like it, I call BS on the 17-18 mpg average. This is just not happening with 364 V8 cid and 6000+ lbs truck.

 

On a duramax...maybe but not a 6.0 truck.

dogzapper Enthusiast

dogzapper

Posted
Posted

I went from a 2006 2500HD Duramax to a 2010 1500 4WD LTZ CC/SB Z-71.

 

Frankly, the 5.3 liter engine with the 3.42 linked to the new 6-speed tranny is truly amazing. I get an honest, hand-calculated 15 mpg in city driving and 21 mpg in freeway/highway driving. Goodness only knows how well this wonderful truck will do when she's fully broken-in.

 

In odd jobs around the neighborhood, I've had 1,500 lbs in the bed several times; if I need more capacity, I have a 5'X9' utility trailer that handles the job wonderfully.

 

Personally, I'd never go back to the heavier truck. The half-ton does everything I need and more, plus it is agile and gets superb fuel mileage. The new 6-speed transmission has really awakened the time-tested 5.3 liter engine. Frankly, this combination feels like it has more power and speed than my old Duramax ... I know it doesn't, but it surely feels like it.

 

Good luck in your choice.

 

Steve

Sunset_Z28 Enthusiast

Sunset_Z28

Posted
Posted

'07 2500HD 6.0 6 SPD and the display generally shows 10-11 around town and 16-18 on the highway. It would be nice if I were actually getting that on the highway.

ATMINF Enthusiast

ATMINF

Posted
Posted

In my truck, I have always gotten 12-14 city and 14-16+hwy. The 16+ is hwy doing about 68-70mph. I also have a tune from Charlie Wheatley.

Ridgerunner30 Enthusiast

Ridgerunner30

Posted
Posted
I have an 09 2500HD GMC with the 6.0 and 6 speed. It is a great truck. I get 17 mpg empty on the highway at 70 mph. My local driving gets me about 15 mpg... but I live out in the sticks. I rarely drive in an urban location other than on an interstate passing through a city. I don't know what city gas miles would be.

 

 

I have the same truck, bone stock and I am lucky to get 14.5 on the highway and 13 in the city.......do you have any mods????? I also have a 35ft fith wheel that I was gettin 11 when pulling it las year and can only get 7.5 this year. My dealer told me that between 7 and 14 is normal for that truck. My 05 Hd 6.0 with the 4spd had a hard time getting 12 on the highway.

Anyone have ideas on packages (exhaust, intake, programmers) that work great together? I was looking at the Banks Power Pack System http://bankspower.com/products/show/343/10 but I think I want something I can tune on the fly like an Edge.

 

 

My truck has a 3.73 rear end. It is an extended cab with no modifications. As far as the poster who called 17mpg BS, I have seen many similiar trucks reported with the same mpg. You can believe it or not. I don't hot rod, but I don't drive like an escapee from the old folks home either. I actually ran 18 mpg, running unloaded, on a 500 mile trip across the south over the winter.

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