LML Lets talk MPG LML's

[S Phinney]

I say the average LML doesn't get as good as some previous version duramax s as a whole. I see anywhere from 12s towing and city to 16s. I don't beleive the heat and fuel here in the south us as good as other places because there are consistent claims of better fuel economy in other places.

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[Digmax]

If you actually use your truck for what it was made for you prob wont average much over 16 overall is my experience

 

[Whitetail Addict]

Not deleted either? stock tire size?

Correct. No deletes and the tires it left the factory with.

 

[SteveLBZ06]

My 15.5 seems to avg. Right about 17 mostly highway some stop and go. It has just under 2000 miles on it. Will go to high 16s for a while just after regen then climb back up. Best 25 mile mpg was 22.4. Must have been all highway. Truck is 100% stock

 

[WolfLMM]

LOL ouch that's not good at all. what's that running about 100MM3 the whole time :roflmao:

Haha, it was in regen A LOT. The next tank did better though.

 

[Troysalm71]

Curious to see what mine does now. I've watched on the dash an it's said 21 with Korys tuning an everything else in my dog. Truck has 33/12.5/20s as well its a cc/sb.

 

[duratothemax]

Mine gets around 16 city driving, stop and go traffic short drives. Maybe a little less If im driving aggressively.

Little over 19 if Im driving all highway, 80mph.

hand calculated

Truck is a 2012, stock...

 

[Hernpj01]

2015.5 tuned and deleted on 33 toyo mts

11 mpg hooked to my goosneck with 10-12k
16 mpg unloaded

 

[catman3126]

I did 400+ miles this weekend on a fill up and got 16.3 at 75-77 from Wallace Idaho back to tri cities and onto Oregon after dinner. this thing weighs 8500 with both of us in it. so I feel like my tuning is right on par with the other tuners after this thread and the post I started on LML brethren on facebook. I'll take 16mpg for what this thing is. if it was stock with 265's i'd bet it would get 20 at the same speeds.