Jump to content

2014+ Gas Mileage (MPG) Topic

BringTheRain403
 Share

Recommended Posts

  • Replies 1.6k
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

Natek
Natek

I think if I was a salesmen I would research the products I would be selling. I wouldn't like it if a customer came in knowing more than me.

nibael
nibael

Mine gets pretty bad mileage at 180 mph. Maybe I should get a bed cover.

Eddie 70
Eddie 70

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.  

Posted Images

JCthebigTree Enthusiast

JCthebigTree

Posted
Posted

'best' is in the 55-60 range. With the big differences in temps the last couple weeks its hard to really be sure...but with this "warmer" weather (high of 5f here today!) I'm seeing around 18 at 55...

 

I played around a bit yesterday and noticed the following.

 

pinned at 55 on flat stretch, I get better mileage at M5 than at M6 or D... Going 55, it definitely drops into 6th when I go from M5 to M6 or D, so I'd assume that would get better mileage - not according to the DIC.

 

Also (and this needs more experimenting) I noticed that when it did manage to drop into V4, the mileage gets worse...but if I'm in M5 it drops in much less.

 

Over the last 100 miles, with the warmer weather/less remote starts, I've seen my around town MPG improve (on the DIC) from about 10 to just over 13...I'll take what I can get.

bboyce536 Enthusiast

bboyce536

Posted
Posted

I usually see my best between 55-65. This 25 average was yesterday
driving through Ohio with 65mpg speed limit I was driving between 55-75
depending on who I got behind. Probably averaged around 65 for this
particular average...4x4 Double cab 5.3

20140114_165916_zpscnfzvocz.jpg

BlaznSaddles Enthusiast

BlaznSaddles

Posted
Posted

Those are pretty good mphs. The best I have had is 23.9 with a crew cab 4x4 Z71 doing an average of 76 mph for 100 miles with a slight tail wind. If it matters, I have an access cover on the bed of the truck.

mcnwil Enthusiast

mcnwil

Posted
Posted

I am just approaching 3k miles with a 5.3 DC 3.42 4x4, but it seems to do the best mileage when at 60-65mph, 22-24mpg. Maybe it is able to stay in V4 for longer periods of time verses running 55mph, just a thought.

gone_fishing Enthusiast

gone_fishing

Posted
Posted

I've noticed that temperature plays a big role in MPG's. We went through a -20F spurt and I would be lucky to get 14-15 MPG going 70MPH on flat road with no wind. Same road when 30F and no wind I'll get 18 MPG.

TYLERZ7180 Enthusiast

TYLERZ7180

Posted
Posted

I usually see my best between 55-65. This 25 average was yesterday

driving through Ohio with 65mpg speed limit I was driving between 55-75

depending on who I got behind. Probably averaged around 65 for this

particular average...4x4 Double cab 5.3

20140114_165916_zpscnfzvocz.jpg

This is a perfect example of why to not baby your motor. Break that thing in and let it set them rings and get MPG like this all day long. Remember that the truck is learning your driving habits...drive it like you did your last vehicle. and drive it hard. Nice numbers bboyce536! :driving:

MTB Enthusiast

MTB

Posted
Posted (edited)

So, I've been babying this thing and getting suck for mileage. Yesterday I smoked the tires leaving a green light. My 2007 would never do that. Ever since doing so my mileage average is bumping up... Starting to believe there is Merit in Breaking it in... Just hope I don't get a ticket doing so...

 

2014 Z71 1LTZ

Crew Cab

Standard Box with no cover or spray liner.

3:42 Gears

1862 Miles

 

 

Best MPG is 19.5 But I do not know when or what speed.

Average is now 17.0

 

 

The numbers are nice but it's hard to compare with others unless you know what you are comparing to.

 

 

1476124_10200364893804968_1044103914_n.j

Edited by MTB
  • Like 1
L-G Enthusiast

L-G

Posted
Posted

5.3 crew with 3.42 gears

 

With stock tires during commute from work.

 

1C9882B3-0C1A-465A-9CCF-ECD7B6AE3173.jpg

 

 

With slightly larger coopers on the same commute

 

 

22159476-05F0-44D7-81F2-46898B83DCE3.jpg

 

I haven't recalibrated the speedometer yet.

  • Like 1

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.5k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,903
    Total Members
    8,960
    Most Online
    RyGuy43
    Newest Member
    RyGuy43
    Joined

  • Who's Online   5 Members, 0 Anonymous, 463 Guests (See full list)

  • Latest Articles

  • Posts

    • AlVeron
      Manufactuer's Defect - Paint Failure - Cherry Red High Country 2021 Suburban

      By AlVeron · Posted

      This is NOT impact damage nor neglect. There were previous class action lawsuits because of such paint preparation st GM manufacturing plant. Not just the Cherry Red Color. This paint is applied in three processes to obtain the desired color.  The manufacturer will cover for 36 months or 36k miles only. That rust is actually corrosion because of the paint process failure. Corrosion is covered for 100,100 miles or a certain months. However their corrosion doesn't include this type. Go figure. Clearly manufacturer knew from previous paint issues. This started 3 weeks ago out of the blue.  
    • richard wysong
      Wow I'm in a pickle. (Broke down truck) and a story.

      By richard wysong · Posted

      Is it time to put a piece of tape over the CEL? 
    • davester
      2015 Silverado 3500 right rear turn indicator failure

      By davester · Posted

      consider doing electrical testing?  I would guess some power or ground wire/connection has a problem.   alldata.com has wiring diagrams, connector pinouts and diagnostic procedures you can use to find where the problem is.
    • davester
      My First Project and GMC has me stumped

      By davester · Posted

      can you tell if the reader is actually trying to get codes, and the pcm is reporting none, or is your reader just silently failing because it's not communicating with the pcm?
    • Atlas
      Wow I'm in a pickle. (Broke down truck) and a story.

      By Atlas · Posted

      Any joy with this truck seems to be short-lived.   The CEL for P0172 ("bank 1" too rich) is now "intermittent".   I'm not sure where to check, or re-check, and my energy to keep chasing problems with junk is wearing thin. The P0172 seems to set as I'm coming to a stop, completely off the throttle, when fully warm. At least, that's what it's done the 3? times it's set.   Everything appears normal on the scanner EXCEPT long term fuel trim. There's only one bank on this vehicle because it's an OBD 1.5 with only one upstream O2 sensor. At idle, it's around -16.4% and will dip to -18% occasionally at idle or off-throttle. LTFT approaches 0 when throttle is held at 2500rpm. Short term appears normal, much closer to zero all the time. The LTFT tells me the engine is running rich at idle but compensating at higher load. But, why?   The EVAP purge valve doesn't appear to be leaking/sucking fuel vapor continuously. Is it sticking just as I come to a stop and the engine is choking on fuel vapor and sets the P0172? But that doesn't explain the persistently negative LTFT. Disconnecting the purge valve doesn't seem to make any difference.   I suppose that leaves another dang issue with the fuel injector. A leaking fuel pressure regulator, a new leak in the spider, or a leaking fuel injector/poppet valve I didn't see, or a small crack in one of the spider legs.   The vacuum line leading to the fuel pressure regulator doesn't have raw fuel in it. It doesn't even smell like fuel when it's pulled off, not until you suck air through it, then you can tell it leads to a fuel component. I'd consider that normal? Nothing is signaling this is a FPR issue from the outside, at least.   The oil smells like fuel but it's not building volume. I've noticed most oil in most engines smells like fuel to some degree so it's hard to say if the smell is an issue or not. Or if the engine just still smells like fuel because the crankcase was full of it a few hundred miles ago. But it's been changed twice since that original issue of the leaking fuel line dumping fuel into the intake.   Patience is running very thin. Every win seems to be accompanied by two steps backwards, or another issue that leads to removing at least the top half of the intake manifold. Enough! LOL

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...