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Sheepdog78

Houston

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Posted: 04/09/19 05:27pm Link  |  Quote  |  Print  |  Notify Moderator

Anyone have any real world experience with the fuel economy of the new GM L5P Duramax in a 3500 DRW?

chiefneon

Livingston, TX

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Posted: 04/09/19 06:01pm Link  |  Quote  |  Print  |  Notify Moderator

Howdy!

I recently purchased a new Chevy 3500 DRW Duranax Custom 2L Hauler. Did our first long pull today towing a 18,000lb plus 44’ Cyclone Toy Hauler. The computer show 8.8 mpg. Truck did a great job towing considering I down sized from a 4400 International Custom 2L Hauler.

“Happy Trails”
Chiefneon

Sheepdog78

Houston

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Posted: 04/09/19 06:33pm Link  |  Quote  |  Print  |  Notify Moderator

What’s it getting when not towing?

TimnJo

Eastern Ontario, Canada

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Posted: 04/09/19 07:53pm Link  |  Quote  |  Print  |  Notify Moderator

My L5P last summer got 23 L/100 Km which works out to 10.2267 (US)MPG towing my rig as in signature, GVWR on the trailer is 16,000 Lb and I'm close to that.

Empty this past winter I've been getting about 17 L/100 Km which works out to 13.8362 (US)MPG with lots of warming up idling and slippery snow driving using winter fuel. I get better than that in the summer though.


2010 Carriage Cameo 36FWS
2018 Silverado 3500HD D/A Double Cab Dually LT

frankwp

Calgary, AB, Canada

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Posted: 04/09/19 08:04pm Link  |  Quote  |  Print  |  Notify Moderator

A bit of a hijack here, but this MPG talk reminds me of a summer job I had in the mid '70s carrying drywall (what a way to make a living). There was a regular run out to one of Calgary's bedroom communities, about 20 miles, mostly highway. There was a gooseneck loaded with drywall, pulled by a Chevy 2500 454. We got between 2 & 3 MPG. How things have changed!


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Splashers3

Oakville, MD

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Posted: 04/09/19 08:41pm Link  |  Quote  |  Print  |  Notify Moderator

MY signature TV gets between 9.5 - 10.5 hauling my signature 5ver. I don't use it that much other than towing.


2017 GMC 3500 Sierra Denali, C/C, D/A, DRW, w/40gal Aux tank, 18K B&W Patriot.
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pcm1959

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Posted: 04/09/19 09:20pm Link  |  Quote  |  Print  |  Notify Moderator

19-21 solo in FL. 8-9.5 towing 15400 lb. fiver @70 mph in the SE USA. Truck performs very nicely!


2018 GMC Sierra 3500 DRW 4x4 Duramax/Allison
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#1Flyboy

California

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Posted: 04/10/19 06:48am Link  |  Quote  |  Print  |  Notify Moderator

... You might also try posting on Duramaxforum.com for good answers...

N-Trouble

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Posted: 04/10/19 08:17am Link  |  Quote  |  Print  |  Notify Moderator

#1Flyboy wrote:

... You might also try posting on Duramaxforum.com for good answers...


Or search the forum. Probably 100 threads on the topic already.


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laknox

Arizona

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Posted: 04/10/19 09:09am Link  |  Quote  |  Print  |  Notify Moderator

Sheepdog78 wrote:

Anyone have any real world experience with the fuel economy of the new GM L5P Duramax in a 3500 DRW?


Nope, but I =did= subscribe to one of Gale Banks' videos where they've totally instrumented a new crate L5P engine and are going to keep pushing it until, as Gale said, "the crankshaft's on the floor or the heads are on the ceiling". [emoticon]

Lyle


2002 GMC Sierra 2500 HD Duramax Crew Cab 4x4 6.5' Bed
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