Fuel economy for GMC 2500 6.0 gas 4:10 gears

Asked by Sep 03, 2016 at 06:44 AM about the 2016 GMC Sierra 2500HD SLE Crew Cab SB

Question type: General

I'm looking at a 2016 GMC 2WD truck
2500HD with 4:10 gears and a 6.0 liter gas
engine.  Does anyone own one set up this
way in either a new or close year model
that can give me a realistic expectation of
fuel economy unloaded and towing an
8000lb trailer?  Any help is appreciated.

2 Answers

274,885

As you found out, the MPG isn't listed due to it being a truck for hauling, and probably low numbers. But here is a link to a GMC forum with real numbers...http://www.gm- trucks.com/forums/topic/190497-fuel-mileage/?hl=mpg

2 of 2 people found this helpful.

I am driving a 2016 2500hd crew cab 6.0.I have 17000 miles on it now.Since new I have never seen more than 13.5 mpg.I consider my driving style very conservative.I also tow a 9000# toy hauler and when I do it drops between 9 and 10.5.but on the positive side,the 4:10 gears make her a strong puller.I had an 08 same body style with the 3:73 gear,and the trans couldn't find the right gear empty or loaded.Wasnt going to buy another because of that,but was told the 4:10 was way better.And I agree

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