2010 Silverado 2500HD Fuel Economy - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Tech_Ed88 · 05-17-2010, 11:16 PM

I was wondering what everyone else is getting for average MPG on the Vortec 6.0 liter Stock.
I am getting 11.3-11.5 MPG from the computer.
I just refilled the tank and reset the OD to see what this tank gets me.

The truck is brand new with 500 miles on it. I have filled it up twice so far.
I need it to pull a 7000 lb tag a long travel trailer, so I went with the 2500HD.

Is this MPG normal? I guess I must have gas pump shock.... not used to this low MPG... My ole 87 chevy short bed had great milage even with 98,000 on it.

Any advice on increasing MPG without decreasing performance?

dwaite72lnghrn · 05-18-2010, 07:23 AM

I think that is about normal for the 6.0. My brother had 1 for work and on the highway he would get about 13-14mpg. That's why I went with the diesel.

**Hart_Rod** · 05-23-2010, 10:28 AM

Quote:

Originally Posted by dwaite72lnghrn

I think that is about normal for the 6.0. My brother had 1 for work and on the highway he would get about 13-14mpg. That's why I went with the diesel.

+1. 16 mpg around town and 18-20 mpg on the highway. With no chips. It should improve a couple of mpgs when I decide to throw a chip on there.

85burb · 05-23-2010, 11:51 PM

My friend has a 2500HD and used to get 9-10 avarage between hiway and city. Therw on cold air and bully dog chip. Now gets about 14. He has small lift and bigger tires too.

draino76 · 02-26-2012, 10:04 PM

I know this is an old post, but would like opinions. I have an 09 2500hd with a 6.0. I regularly see 18 mpg highway the worst has been 14, once saw 21, depends on my right foot, and the wind, but I usually drive 70. I would like to have the dealership reflash the computer for better shifting, but with all the stories out there about poor mileage I'm reluctant to have them change anything. Are there others out there getting good milage and i shouldn't worry. Or shoud I leave it alone.
Posted via Mobile Device

**WestButteTruck** · 03-25-2012, 11:14 PM

Hmmmm, if you are getting that good of mileage, I'd be reluctant to change anything. However, if you decide to, have someone do a custom tune for your vehicle. I had BlackBear Performance do a chip for mine and so far it's been good. I didn't see huge mileage gains, but probably an honest 1.5-2 mpg difference from stock. I'll see an average of 15 on the highway at 70-75. Not the greatest, but better than 12-13 I guess. Power and performance were improved as well.

05-17-2010, 11:16 PM	#1
Tech_Ed88 Registered User Join Date: Apr 2009 Location: Uniontown, PA Posts: 41	2010 Silverado 2500HD Fuel Economy I was wondering what everyone else is getting for average MPG on the Vortec 6.0 liter Stock. I am getting 11.3-11.5 MPG from the computer. I just refilled the tank and reset the OD to see what this tank gets me. The truck is brand new with 500 miles on it. I have filled it up twice so far. I need it to pull a 7000 lb tag a long travel trailer, so I went with the 2500HD. Is this MPG normal? I guess I must have gas pump shock.... not used to this low MPG... My ole 87 chevy short bed had great milage even with 98,000 on it. Any advice on increasing MPG without decreasing performance?

05-18-2010, 07:23 AM	#2
dwaite72lnghrn Registered User Join Date: Jun 2002 Location: central pa Posts: 1,525	Re: 2010 Silverado 2500HD Fuel Economy I think that is about normal for the 6.0. My brother had 1 for work and on the highway he would get about 13-14mpg. That's why I went with the diesel. __________________ 72 longhorn c30 502BB/th400/fact air/4.11rear/ custom camper 72 bug(the better half's) under reconstruction 2009 HHR aqua blue 71 GMC k20 350/sm465 2009 Chevy hd3500 6.6 Victory Red crew cab dually Dave & Jeanne

05-23-2010, 11:51 PM	#4
85burb Registered User Join Date: Dec 2009 Location: lindale,tx Posts: 2,373	Re: 2010 Silverado 2500HD Fuel Economy My friend has a 2500HD and used to get 9-10 avarage between hiway and city. Therw on cold air and bully dog chip. Now gets about 14. He has small lift and bigger tires too. __________________ 82 c10 5.3/4l60 84 c20 5.3/sm465 85 chevy k10 suburban LQ4/4l60 91 chevy c10 suburban Lsa 5.3/4l60 2017 Silverado whipple 5.3 1964 Vw beetle 1974 vw beetle

02-26-2012, 10:04 PM	#5
draino76 FUJIMO Join Date: Dec 2004 Location: South Dakota Posts: 127	Re: 2010 Silverado 2500HD Fuel Economy I know this is an old post, but would like opinions. I have an 09 2500hd with a 6.0. I regularly see 18 mpg highway the worst has been 14, once saw 21, depends on my right foot, and the wind, but I usually drive 70. I would like to have the dealership reflash the computer for better shifting, but with all the stories out there about poor mileage I'm reluctant to have them change anything. Are there others out there getting good milage and i shouldn't worry. Or shoud I leave it alone. Posted via Mobile Device __________________ IF IT DON'T GO--CHROME IT!! I dont mind confusion, I create it!

03-25-2012, 11:14 PM	#6
WestButteTruck Kung Fu Master Join Date: Oct 2005 Location: Montana Posts: 547	Re: 2010 Silverado 2500HD Fuel Economy Hmmmm, if you are getting that good of mileage, I'd be reluctant to change anything. However, if you decide to, have someone do a custom tune for your vehicle. I had BlackBear Performance do a chip for mine and so far it's been good. I didn't see huge mileage gains, but probably an honest 1.5-2 mpg difference from stock. I'll see an average of 15 on the highway at 70-75. Not the greatest, but better than 12-13 I guess. Power and performance were improved as well. __________________ 72 GMC SuperCustom 4x4 1972 Chevrolet Cheyenne Super 4x4

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