what are you guys getting for mpg? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

OLDIRON69 · 02-06-2013, 09:22 AM

My '05 2500HD gets 8 at best towing a 24' enclosed trailer. If I drive right..which hardly ever happens I get 15 on the hwy empty. I'm a tree broker and haul alot of heavy loads. I really need the D-max but the 6.0 gets it done. Water pump just replaced two weeks ago, believe it or not it was putting so much drag on the motor for the last 2000 miles it had the power steering pump sounding like a cat in a vise..I think the mileage is even improved 1-3..still keeping an eye on fuel to see but I know it was killing the mileage even more.

pmkrew · 04-14-2013, 05:25 PM

My DD is an '07 suburban 2500 6.0l 4x4 and 3.73's (I think) and I get around 12 city and 16 hwy (avg speed of 80).
After reading this thread I am not quite as disappointed in the mileage it gets but would like it to be better...
Any suggestions that have netted you actual performance and economy results?
Posted via Mobile Device

Andy4639 · 04-15-2013, 11:55 PM

I have a 08 Tahoe 4x4 with 65,000 on it. It had 28,000 when I got it. The best it's ever done was 19 and I babied it the whole time never running over 70MPH on a 300 mile trip. The speed limit was 65 for the most part.
The gas milage sucks on the newer vehicles. The e-85 isn't worth the extra pennies either. I will never run it as long as regular gas is with in a $1.00 of it.

02-06-2013, 09:22 AM	#1
OLDIRON69 Registered User Join Date: Mar 2007 Location: Ben Wheeler,Texas Posts: 992	Re: what are you guys getting for mpg? My '05 2500HD gets 8 at best towing a 24' enclosed trailer. If I drive right..which hardly ever happens I get 15 on the hwy empty. I'm a tree broker and haul alot of heavy loads. I really need the D-max but the 6.0 gets it done. Water pump just replaced two weeks ago, believe it or not it was putting so much drag on the motor for the last 2000 miles it had the power steering pump sounding like a cat in a vise..I think the mileage is even improved 1-3..still keeping an eye on fuel to see but I know it was killing the mileage even more. __________________ 05 2500HD 6.0 excab 69 LWB-Gone but not forgotten! 68 Dodge Charger 383/727 69 Dodge Charger-440/4spd

04-14-2013, 05:25 PM	#2
pmkrew Registered User Join Date: Sep 2009 Location: Marietta, Ga Posts: 115	Re: what are you guys getting for mpg? My DD is an '07 suburban 2500 6.0l 4x4 and 3.73's (I think) and I get around 12 city and 16 hwy (avg speed of 80). After reading this thread I am not quite as disappointed in the mileage it gets but would like it to be better... Any suggestions that have netted you actual performance and economy results? Posted via Mobile Device

04-15-2013, 11:55 PM	#3
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,936	Re: what are you guys getting for mpg? I have a 08 Tahoe 4x4 with 65,000 on it. It had 28,000 when I got it. The best it's ever done was 19 and I babied it the whole time never running over 70MPH on a 300 mile trip. The speed limit was 65 for the most part. The gas milage sucks on the newer vehicles. The e-85 isn't worth the extra pennies either. I will never run it as long as regular gas is with in a $1.00 of it. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.



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