2010 2500 hd 6.0L


Asked by Oct 03, 2010 at 01:36 PM about the 2010 Chevrolet Silverado 2500HD

Question type: General

I have a 2010 Silverado 2500Hd CrewCab Standard Bed 6.0L Vortex 4X4 with 1900 miles
My Question is MPG's they are horrible I am driving this truck like a grandmom, baby it all the way and empty around town I'm at 10.5!  If i run highway with cruise on 12.3 mpg! What are everyone else getting? Am i jumping the gun or should i wait for a better break in?

18 Answers


I have a 2004 chevy 2500HD 6.6 Duramax Diesel, I get 12.5 city and about 15 on the highway with no performance upgrades. Those 6.0 vortec motors always seem to get poor mpg. To increase mpg and even more horsepower you can try buying upgrades that save fuel such as a programmer (chip), exhaust system or air intake system. I recently ordered a turbo-back exhaust system and a banks ram-air intake system I am getting about a 3-4mpg increase. I am soon purchasing the ATS diesel programmer which i am told will give me an additional 2-3 mpg and a huge power increase, (but these are diesel numbers, gas is a whole different world) but it can still help you out at the gas pump. If you are running regular unleaded gas in your truck you can try running a higher octane gasoline such as plus(89 octane) or premium(93 octane) in your truck because higher octane fuel burns cleaner and can give you better fuel milage. Hope this helped! - George

4 of 4 people found this helpful.

Your numbers are about right. I have a 2006 HD 4x4 its getting between 12 to 14 mpg. I'm running it half and half hwy and town. We feel your pain at the pump.6.0 ltr. Vortec pay for the power.

2 of 2 people found this helpful.

I had a 2007 2500HD Ext'd Cab Long Bed with the 6.0L (2WD) and I got 9.9 in city and 14.8 on highway. But when I add Octane Booster (fuel additive found at most Auto Parts stores) with every other tank full and the MPG went up to as high as 17MPG. Now I own a 2012 2500HD Crew-Cab shortbed (2WD) with the 6.0L and I am practicing the same method of additive enhancement. Try it and let me know if it worked for you.

6 of 6 people found this helpful.

when i drive my work truck , a 2005 2500 hd crewcab diesel, i usually get around 11 city and about 14 highway, my boss drove the truck from ohio to pennsylvania and only used a quarter tank.

2 of 2 people found this helpful.

Hey Guys, I recently bought a 2008 Chevy Silverado 2500HD w/ the Vortec 6.0. Lately ive been getting 12-13 MPG and regular country roads. Im trying to upgrade my truck and atleast get 400HP with 15MPG. All i thought about getting was Leveling Kit (i know that doesn't help) K&N Air Intake and some bigger tires. Trying too make this my Performance Truck/While getting the job done. Can anyone tell me how to get. Lots of HP Gain and MPG Gain. Please Help.

13 of 13 people found this helpful.

check your rearend ratio- there will be a code in the glovebox on a silver or white tag with a black strip on top- they are in alphabetical order- GT4 is a 3.73 and GT5 is a 4.10 rearend- if it is a GT5 then that is about right- if it is a GT4 then it should get 16 or so hwy and 12-13 city.

4 of 4 people found this helpful.

I have an 09 Chevy 2500HD with the 6.0.... crew cab 4wd with a 6" lift and 38" tires, intake, spacer, and programmer.. 12mpg in city. 16 on the highway with 4.56 gears.. before the lift I was getting 20 or better with 3.73 gears

3 of 3 people found this helpful.

I have a 13 Chevy 2500HD 6.0 Single cab long bed similar to the white truck I have Airaid cold air intake throttle body spacer with throttle body, custom true dual exhaust with headers high flow cats Flowmaster 50 Sieries with echo tips, 2inch level lift kit, running 33's, upgraded ignition coil packs with thicker spark plug wires and upgraded spark plugs with high volume oil pump to get rid of that annoying knock in the morning no programmer. I run mostly highway and average 18mpg while pushin close to 400hp now bhp I don't know about. But I do pull a fifth wheel travel trailer with weighing a little over 10thousand pounds and my 6.0 hates pulling the trailer at 80mph but with the trailer I average about 12mpg with my foot buried to the floor. I should of bought a diesel.....

7 of 7 people found this helpful.

I will also note that I do a lot of heavy driving and I do long trips and this is the only truck that I've noticed that does this the first full tank it drinks down but the second full tank will last a lot longer then the first one idk what it is so the mpg very's but my best was 18 running from South Texas to North Michigan I'm trying to find a way to help my truck coast better down the highway I'm open for tips.

4 of 4 people found this helpful.

Buy a Dodge.

1 of 1 people found this helpful.

Buy a Dodge, then walk everywhere,,lots of fuel saving there!

6 of 6 people found this helpful.

Canada here. 6.0 2008 on gmc 2500 wt long bed. Ext cab. I get about 4.5 to 6 km/L. Converting to miles it's about 10.125 miles per galon. On the low end. That is city driving. Considering what the engine is. It's probably the best we'll see. Now it's your choice. Dump a lot of money in stupid upgrades to get a mediocre economy increase. Or just drive it and use de money for gas and avoid premature repairs!

2 of 2 people found this helpful.

Get a Honda if you want gas mileage. Duh

I look an truck GMCGMC o CHEVY 2500HD motor 6.0 8 silindros caja de 8 pies no 4x4 Cabina sencilla 774 556 9274


Would you get me a 7 year old truck with 1900 miles.change all filters.if gas engine use can of dry gas.thats a good start.if it ain't clean it ain't goonna run.air filter



1 of 1 people found this helpful.

It depends on what you want out of a truck. I have a 2015 silverado with 23000 miles,crew cab and long box. It has a 6.0 and a 4.10 rear end. It is my work truck and work it we do. The mileage is awful about 10 mpg but it holds a ton of tools/equipment,a crew of men and will tow a house. It is not you're everyday driver, 6.0s were not built for fuel effiecency they were built for work and hauling. Again it depends on what you want or need. Dan


Trucks these days need dual speed rear differentials. The technology has been out there for many, many decades.

1 of 1 people found this helpful.

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