2014+ Gas Mileage (MPG) Topic

Rawyzf · December 13, 2015

This was taken last week when I filled up. So far I have put this many miles on the truck. Hopefully it stays like this. We will see.

Holy crap, nice job.

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SuperSize · December 14, 2015

This was taken last week when I filled up. So far I have put this many miles on the truck. Hopefully it stays like this. We will see.

Very nice. What are the specs on your truck?

tyrich88 · December 15, 2015

I did a 5 hour drive yesterday with the majority of the driving on 75mph highways/interstate and rolled up to my house at a 18.5mpg average. That's a lot better than with my old 285/65/18s.
Haven't hand calculated it but It will only go up from there with a hand calculation.

Running 275/70/18 BFG KO2s and a 2" level.

Willshire · December 17, 2015

My best at 60 miles one way to work is 24.9MPG on the 31 mile avg. Mostly at 60MPH. Take off has a lot to do with mileage conservation as well. with only 800 miles on the truck, i haven't planted it yet.

Eddie 70 · December 17, 2015

Very nice. What are the specs on your truck?

It's still stock. 14 Double Cab with 5.3 2wd. No lift.

shep28 · December 19, 2015

I stopped paying attention. Much better than my 2005. This truck excels on the highway on cruise control. City is another story, especially the way I drive and with my duals.......

SAKO79 · January 2, 2016

My 2014 Sierra 1500 crew cab with a 5.3 liter has had horrible fuel mileage since I first received it on and took ownership of it I've been hovering around 13 and a half miles per gallon. Doesn't matter if I'm highway or city if its city it's a little bit worse and those are my manual calculations. I have very sluggish acceleration my transmission is all over the place doesn't know what gear to pick right now it's at the dealership to try to fix it all and I have a 2015 Silverado with the same engine and configuration and I have no throttle delay I have all the power there unlike my truck

SAKO79 · January 2, 2016

This trip was all highway

crafferty · January 2, 2016

This trip was all highway

That is how mine looks right now too. Last two trips to Atlanta from Tuscaloosa I have averaged 13.4mpg. Before the winter blend of gas I was getting about 15.5-16.5mpg. But this is also with the 6.2L, 6" lift, 35's and 3.42 gears. Once gears are released later this year this should hopefully jump up.

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Victor Ferreira · January 2, 2016

Averaged 19.7 mpg hand calculated on the drive from Ft. Lauderdale to Greenville, Alabama. A little lower on the drive back. I can't complain, since cruise was at 70-75ish all the way.

DIC indicated around 21 mpg.

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SAKO79 · January 2, 2016

Lol

Snoringbear · January 22, 2016

My 2015 LTZ CC 4x4 6.2L gets better mileage than my previous 2008 LS CC 5.3L in all aspects; town, hyway, towing, you name it. As others have commented there's a big improvement when road tripping on the interstate whether towing or not towing. I'm guessing a big contributor in mpg improvement has to do with going from a 4 spd tranny to an 8 speed tranny. And, the 6.2 having enough hp and torque to lope along at interstate sped (in Texas that means somewhere between 75 ~ 80 mph, ok 85 mph, lol).

SkiDooNick700 · January 22, 2016

haha yes I love the fact that at 80-85mph (per the DIC) my MPG is as good as my Avalanche got at ~74mph.

Snoringbear · January 23, 2016

"Hi everyone! I'm new to the forum"

Uhh, new to the forum? With 1,177 posts? But, it's a good post nevertheless and getting some interesting discussion. Just wonder though why you feel it necessary to characterize yourself as new to the forum. Just curious

Snoringbear · January 24, 2016

"I know a lot has been said that DIC fuel mileage systems are not accurate,but this software tends to tell a different story"

I had it on my 2005, 2008 Silverados, and now my 2015 LTZ. I've found them to be fairly accurate as long as I'm consistent in the way I cap off when filling up.