Jump to content

Recommended Posts

Posted

I don't know if it because my truck is brand new (not broken in enough) but I am not getting anything like these numbers. My first fill up I was at 11 mpg. Bought the truck about 50 miles from home and only saw 17 mpg on the highway. Second tank the computer still has not gone over 12 mpg.

 

I do mostly city but it is a stock 2020 AT4 at the moment. I am also driving the kids and wife around mostly so no lead foot. Not sure why I am getting such low numbers.

Posted

I have about 10k miles on my NHT 6.2 with 3.42 gears.  Set it on cruise at 68 and got almost 22mpg for a 150 mile trip.  Not too bad.  Also getting a little better mpg towing now.  My 6000lb camper was initially giving me 8mpg, but its now between 9 and 12 depending on wind direction.  Average is about 9.5.

Posted

2019 HC CC 4x4 6.5' bed 6.2 with 14000 has averaged around 21 with 60-70% highway. But a little over 13 like this:KIMG0066.thumb.JPG.95ad15a984da03684aab21c3bda474fe.JPG

Posted
7 hours ago, ElmoTheRed said:

I don't know if it because my truck is brand new (not broken in enough) but I am not getting anything like these numbers. My first fill up I was at 11 mpg. Bought the truck about 50 miles from home and only saw 17 mpg on the highway. Second tank the computer still has not gone over 12 mpg.

 

I do mostly city but it is a stock 2020 AT4 at the moment. I am also driving the kids and wife around mostly so no lead foot. Not sure why I am getting such low numbers.

Just filled mine up today. 14.9 mpg. Mostly city. I only have 1500 miles on mine. I hope it improves. I am almost getting what my jeep jk got with crap gears and 35's

Posted

Those reporting worse gas mileage, did you take the bricks off of your feet before driving?

  • Haha 1
Posted
Quote

Those reporting worse gas mileage, did you take the bricks off of your feet before driving?

LOL

 

Nothing really to report with little over 3000 miles on a March 2020  unit since  mileage is all over the place because I can't seem to keep my foot out of it, especially when towing the boat.

 

Zoom Zoom

Posted

Did another mileage check returning home from camp. Last time got 28.4MPG with a tailwind at 55MPH. This weekend had a very slight head/crosswind and got 25MPG at 60MPH

I have the CAI and Cat Back exhaust running 3.23 gears and 91 octane and 50PSI in my Duratrac tires.

IMG_0284.jpg

Posted

Not bad for a weekend (this was one day) or traveling for baseball games

4604608e83776458891a6a505f18608d.png


Ryan B.

  • 1 month later...
Posted (edited)

2019 AT4 (6.2)

20 inch wheels with the OEM Bridgestone tires.

Every week I get 19-22 mpg. 

One trip from Austin - TX to the Gulf cost, 4 people, bed full of stuff, around 4 hr drive, average from start to end was 24.1 mpg.

Pretty amazing really.

 

 

Edited by carpendj
Posted
On 8/4/2020 at 4:47 PM, Denny NWO said:

Did another mileage check returning home from camp. Last time got 28.4MPG with a tailwind at 55MPH. This weekend had a very slight head/crosswind and got 25MPG at 60MPH

I have the CAI and Cat Back exhaust running 3.23 gears and 91 octane and 50PSI in my Duratrac tires.

IMG_0284.jpg

I did another mileage check, this time I ran Regular 87 octane and the 64 miles from camp to home on the highway at just over the 55 MPH speed limit with the cruise control set at 57MPH and got 29MPG. My best mileage posted a few pages back was 28MPG and I have concluded that there is no noticeable difference between running 91 octane over 87 octane when driving economically. I did notice after the fuel mileage check when i strapped on my lead filled shoe, that the motor slightly knocked when pushed hard and the power was not the same. Back to premium fuel. 

Mileage Check Sept 7 2020.jpg

Posted (edited)
On 7/21/2020 at 7:25 PM, nick mcintire said:

Can you guys tell me what you are actually getting for gas mileage on the 6.2 engine.

I have heard some pretty good numbers but an wondering what most people say.

I was getting, read out, about 16 but real world math was 14.7-15 around town 21ish highway. Traded up to a 2020 2500 with Duramax for towing..because when I took a 1200 mile family trip to Montana towing our 7000lbs trailer, I got 7.8 mpg. You have to plan fuel stops accordingly at that rate with only a 24 gallon tank, which is ridiculous.

Edited by Londart2020
Posted

new 2020 midnight edition trail boss 6.2 only got 450 miles hope it gets better but cant complain i love the 6.2 getting 15.8 mpg so far I  just traded in a 2019 5.3 rst that had 15000 miles I was getting around 18 mpg in it not all that much of a difference but a ton more power....

Posted

My lifetime just went up to 13.1mpg (3300 miles) after a 700 mile roadtrip to Mammoth last weekend.  Got about 17mpg on way up (cruising at 75, but continuous climb from sea level to 9000ft), and almost 22mpg on way home (75-80, almost all downhill, but got caught in traffic on Cajon Pass). 

 

It's just the around town that kills it...I average 12-13, and with my 4 year old in the truck, driving gingerly and no excessive throttle...it just is what it is.  Disappointed it's not better than my 2010 with 6.2/6spd combo (which also had 3.73 gears with Max Tow!), but it's just an overall bigger and heavier beast. 

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
  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts
  • Member Statistics

    342,760
    Total Members
    8,960
    Most Online
    MASONV88888888
    Newest Member
    MASONV88888888
    Joined
  • Who's Online   5 Members, 0 Anonymous, 1,636 Guests (See full list)


  • Latest Articles

  • Posts

    • But Grumpy I did show several subdivisions that had homes starting in the 170K range. If you bought a Townhouse or Condo you could go cheaper. Same with a car 3000 dollars in the 70s translates to around 20K today. There are several models at that price. You actually get more for the money. In the 70s I drove a 3000$ car bought a 28K home and made 4.50 per hour. Thank goodness for overtime. Today I could buy a 170K house drive a 20K car and make 25 dollars an hour operating the same machine today. The difference the house, car, machine would be better and have AC. And I wouldn’t be taxed on overtime. And statistically your wife works too. Easing the burden. I thought we agreed to disagree. I brought receipts earlier, showing examples. I think you’re more stubborn than me. I was done with this debate. 
    • I’m definitely interested to hear the end result here. 
    • My 2025 Silverado 1500 had to receive a brand-new engine (long block) under warranty last month at only around 16,500 miles. Before the replacement, the truck repeatedly displayed "Engine Oil Level Low" warnings, even though the Oil Life Monitor still showed around 50% remaining after about 6,000 miles since my last oil change. After seeing the warning several times, I checked the dipstick with the engine cold, and the oil level was completely normal. The next day, the message escalated to "Add Engine Oil." At first, I assumed it was just a faulty oil level sensor, so I brought the truck to the dealership. After inspecting the engine, they found internal cylinder wall scoring and ultimately replaced the entire long block under warranty. Before this happened, I was planning to install a 4-inch lift and suspension upgrade on my truck. After needing a new engine at just 16,500 miles, I honestly don't see the point anymore. I also contacted GM to ask whether my vehicle qualified for a buyback, but I was informed that it does not at this time. Anyway, this experience has left me with serious concerns about the long-term reliability of this engine. I sincerely hope NHTSA expands the current investigation or recall to include 2025 model and performs a thorough inspection of affected vehicles. My biggest concern is that these engines may fail shortly after the powertrain warranty expires. If GM truly stands behind this engine, then at the very least, please consider extending the powertrain warranty to 10 years for affected owners. That would go a long way toward restoring customer confidence.
    • Without exception but then I'm the odd duck, right? I know what goes into that test, how it is calculated and thus how to beat it. But EPA values are often not beaten by the general public and the government has in past years adjusted the means and methods to come to those values to more closely approximate "Joe Average".    The only real trick to beating that EPA average is don't drive like "Joe Average".    It's the same method you used to profit from "Economic Migration" and in doing so beat the 'stats'. But you, like me, are not "Joe Average".     The thing you don't seem to grasp is this "Purchasing Power Index" isn't forward looking. It doesn't predict what it going to be but looks backward and states what it was. They are not telling us what the THINK, they are telling us what they MEASURED. Example:    Wife says "I'm going to lose 40 pounds by Christmas". May she does, maybe she doesn't but the doctors office who weighed her when she made that statement and again at Christmas only REPORTS what the RESULT was. You and I can banter about what was possible and what aunt Tilly did till the cows come home but the result is the result. Arguing otherwise is.....irrational. That's all I'm saying. This isn't about:      What you are calling a 'Statistic' is a RESULT not a CALCUATION and as a result the RULE. Like gravity as a rule, it can not be broken. 
    • Just wanted to say thank you for posting this. Years later, your thread is still helping Silverado owners.   I bought my 2025 Silverado 1500 in January 2025, and I've had what feels like the exact same rattle since day one. After reading your findings, I believe my truck has the same issue with the cable carrier contacting the rear sliding window. To be honest, I had pretty much given up on pursuing the issue. It wasn't until I recently drove another brand's pickup that I realized just how quiet their cabin was—and how noisy mine has been all along. On my truck, the rattle happens on almost any paved road, gets even worse on rougher pavement, and I can even hear it during braking and acceleration.   I actually referenced your thread when submitting my case to GM, hoping they'll recognize this as a recurring issue instead of treating it as an isolated incident. The reason I reached out to GM first is because my dealership told me they would need to keep the truck for at least two days just to diagnose the problem. I was concerned that even after two days, they still might not be able to identify the source of the rattle before giving the truck back to me. I had also asked a few dealerships about this issue during previous service visits, but none of them seemed to know what was causing it or had a solution. That's why I decided to contact GM directly first, hoping they might already have an official repair procedure or guidance for this issue.   I also hope GM eventually comes up with an official fix for this problem. I have a feeling there are many Silverado owners experiencing the same rattle, but most either choose to live with it or simply don't know what the cause is.   Really appreciate you taking the time to document your diagnosis. Your post is still making a difference years later.
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...