2011 lml mpg info - Chevy and GMC Duramax Diesel Forum
2011+ LML Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect

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Old 01-20-2012, 07:45 PM   eBay Motors  #1 (permalink)
 
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Smile 2011 lml mpg info

Hi! I'm thinking about getting a 2011 Chevy 2500 with lml duramax. Just like to know what people are getting for city and highway mileage; also towing mileage. I'll be towing 5500-6000 lb TT. Might be getting into a 27-28 foot 5th wheel in the future. Appreciate your input! Thanks!
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Old 01-20-2012, 08:29 PM   eBay Motors  #2 (permalink)
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Originally Posted by dano555 View Post
Hi! I'm thinking about getting a 2011 Chevy 2500 with lml duramax. Just like to know what people are getting for city and highway mileage; also towing mileage. I'll be towing 5500-6000 lb TT. Might be getting into a 27-28 foot 5th wheel in the future. Appreciate your input! Thanks!
There is a discussion on that very subject going on HERE.

I have a Jayco travel trailer about 5500 lbs, but I don't know what sort of mileage I'll get pulling it. I put the camper in winter storage in mid Oct, and I bought my new 2011 GMC 2500HD Duramax about 2 weeks later. So I won't be towing the camper behind it until mid to late April at the soonest.

on edit: FWIW, my previous truck, a 99 F-250 7.3 would get about 12 to 14 pulling that same camper.
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Old 01-21-2012, 06:33 PM   eBay Motors  #3 (permalink)
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I've been getting about 14.5 ever since I've had it. Thats been the DIC reading. I haven't hand calculated yet, or made a long highway run.
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Old 01-22-2012, 11:13 AM   eBay Motors  #4 (permalink)
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I've been getting about 14.5 ever since I've had it. Thats been the DIC reading. I haven't hand calculated yet, or made a long highway run.
I've found the "Fuel Used" read out on the DIC to be a little high. For example if it read 20 gallons used, it would take take 19 to fill the tank. With that in mind, the "Average MPG" is therefor a little less than hand crunched numbers.
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Old 01-22-2012, 04:41 PM   eBay Motors  #5 (permalink)
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Originally Posted by Tail_gunner View Post
I've found the "Fuel Used" read out on the DIC to be a little high. For example if it read 20 gallons used, it would take take 19 to fill the tank. With that in mind, the "Average MPG" is therefor a little less than hand crunched numbers.
If it uses less than it "thinks" it uses, then the milege is better than it "thinks" it ise. (less fuel = better mileage)
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Old 01-23-2012, 12:53 AM   eBay Motors  #6 (permalink)
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If it uses less than it "thinks" it uses, then the milege is better than it "thinks" it ise. (less fuel = better mileage)
I think that's what I said.
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Old 01-23-2012, 08:16 AM   eBay Motors  #7 (permalink)
 
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I have a 2011 2500 4x4 with 8000 miles, I get 12 city and 15 highway and 10 towing 9000 lb travel trailer. Thought it would do better but my friends say it's to late to get the fuel mileage they get had to buy be for 2010
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Old 01-23-2012, 08:22 AM   eBay Motors  #8 (permalink)
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I have a 2011 2500 4x4 with 8000 miles, I get 12 city and 15 highway and 10 towing 9000 lb travel trailer. Thought it would do better but my friends say it's to late to get the fuel mileage they get had to buy be for 2010
No you don't. It's all in the right foot. MY LML gets 2mpg better than my LMM and the same as my 2005 LLY. LML has much more power and a stronger platform,brakes,frame suspension,GVWR ect.
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Old 01-23-2012, 11:11 AM   eBay Motors  #9 (permalink)
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i have a 2011 2500hd 4x4 been averaging 16 city and 20 highway. have 29k on the odometer and mileage has been getting better as far as city goes. i cruise 75mph highway
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Old 01-23-2012, 05:36 PM   eBay Motors  #10 (permalink)
 
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2011 2500 duramax

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Originally Posted by 2011denali View Post
i have a 2011 2500hd 4x4 been averaging 16 city and 20 highway. have 29k on the odometer and mileage has been getting better as far as city goes. i cruise 75mph highway
Thanks everyone. If I can count on getting around 16 city and 20 highway driving then I'll be quite happy! I presume you get this mileage without any mods due to warranty issues.
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