2014+ Gas Mileage (MPG) Topic

[Ventilator]

What is the max range you have seen?

 

 

 

 

 

 

749 IIRC, but unfortunately I didn't get a picture of it. It has nothing to do with your trip meters, but everything to do with your recent running MPG. I averaged just under 27 MPG on the prior tank while driving 45 MPH in Yellowstone, then going out of the East side down the switchbacks during a severe rainstorm. Not only raining cats and dogs, but also overhead rocks to dodge on the way down.

 

Cannot remember my last 25, 50, and 400 for that tank, but they were extremely high numbers.

 

I've seen the 6 hundreds several times, so I'm thinking it must be based off your last 25, 50, or even possibly another unknown number between 50 and 400. I just don't think it could be based on the last 400, or most would only be seeing numbers up to the high 5 hundreds on a good day.

 

It does recalculate while you are driving, both adding to or removing range, depending on your current running MPG.

Edited August 23, 2015 by Ventilator

[Roidz]

Took a pic when I hit 11,111 miles. The mileage is part freeway/part city driving.

 

 

Sent from my iPhone 6+

[Roidz]

I know there's not a lot of miles on the trip but it gives an idea of the freeway mileage. Not bad considering 10" lift, 38"s, and 6.2L

 

 

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[wurgs]

Just got back from a 403 mile trip. Averaged about 65 mph, about 90% highway, mixture of relatively flat ground to mild hills, temp about 75. I averaged 21.2 hand calculated ( DIC said 21.3). That's pretty good for a 6.2L with LT tires.

[Victor Ferreira]

That's easy to do if you reset the trip meters just before you head down a long pass!

 

Let's see your best averages!

Oh and I have a 6.2!

I would show my 400 mile average but I have been towing my camper in the last 400 so it's nothing exciting

But you really can't fake the 50 mile average! I got these numbers on my last trip to Denver and some of it was in rush hour traffic

 

 

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Totally unrelated but besides that awesome mpg reading, I never noticed the Denali had a different speedometer gauge (more lines on it).

 

About the bigger DIC though, is the order of the top gauges customizable? Off topic hehe

 

 

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[bass mechanic]

Yes one of these days I'll have to take a video of the animation when you change themes and go in and out of tow mode

 

 

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[SuperSize]

I don't see an instantaneous mpg reading reading on that screen. Does it show that?

 

See the number on the left (54 mpg) of the chevy screen. That number helps a lot as the bar tops out at 35 mpg or so. (going by memory forgot the exact range of the bar graph)

 

 

[RAT-ON]

I put about 250 miles on this weekend. Mixed interstate, county highway, country roads (flat, temps in mid 60-70). Not bad at all. Driving back and forth to work I'm getting about 23 average. Life of truck 20.1 so far. Makes it hard for me to lift the front end a bit, but I'm still doing it

 

[Rawyzf]

I put about 250 miles on this weekend. Mixed interstate, county highway, country roads (flat, temps in mid 60-70). Not bad at all. Driving back and forth to work I'm getting about 23 average. Life of truck 20.1 so far. Makes it hard for me to lift the front end a bit, but I'm still doing it

 

I really don't think leveling hurts the MPGs much. It's more due to the change to AT or heavier tires.

 

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[RAT-ON]

I really don't think leveling hurts the MPGs much. It's more due to the change to AT or heavier tires.

 

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Agreed. Switching over to the heavier AT tires is when I noticed the biggest change on my last truck. This time I am also going to leave the front spoiler on (for now!)

[werked]

Looking at some of these good mpgs....I'm starting to wonder if something is wrong. I've got 1500 miles on the truck....lifetime is only 18.1 and best I've seen on trip reset at fill up is 18.4. I drive mostly interstate to and from work, no significant traffic and usually run 70ish....I'm completely stock....Should I be concerned?? I don't like the fact that I can't even come close to the 22-23 hwy.

I have the 5.3 w/ 3.42

 

Sent from my Note 4

Edited October 7, 2015 by werked

[tnchevy]

You will probably only see 22 mpg on a 55 mph highway and not driving into a headwind.

[Victor Ferreira]

I have the 5.3 with 3.42 and I got 21mpg hand calculated on my drive up to ATL from south Florida, did 75ish all the way.

 

On city driving though, all I get is the high 16's. No idea how some guys get almost 19-20.

Edited October 7, 2015 by Hisdem

[tnchevy]

I don't drive on the interstate much but the best I have got was 20mpg back in late spring on a trip out to middle TN. Funny thing is my 2002 would get 18.5 mpg on that same trip with heavier tires and no ground scraping air dam.

[RAT-ON]

64 and under on flat ground is the sweet spot. Add hills, head wind, etc and it'll drop quick. I also don't run my cruise much unless it's really flat. The cruise isnt' very smooth even on little inclines and will drop it quick also. I averaged 26.2 on my last 25 miles from work to home. A few stop lights out of town, then 40-62 mph all the way up the highway, then about 45-50 on another country road for a bit. Pretty much ideal conditions.