Real Life MPG 5.3 / 6.2

[drmoose]

In a 5.3, I have yet to zero out one of my trip counters. For what it is worth, 21k miles at 18.0 average. That is 60%+ highway driving. I feel this is probably pretty accurate.

 

[vcode]

We are currently on a short family trip and I did the driving today. The most non aggressive, slow accelerating, fuel sipping, no more than 5 mph over the speed limit driving that is possible. Wife annoyed with the slow rate of travel kind of driving. Mostly 50 mph two lanes but a touch of 70 on the freeway, almost all flat ground with very few hills. After 140 miles the dash readout says 19.2 mpg and I feel it would be pretty difficult to squeak much more out of a 5.3 than that.

That seems to jive with what others are seeing. Just for kicks, I put my 2010 on cruise at 40mph on level ground and saw 25-26 mpg on the instant read. That drops to 20-22 at 75 mph. I have seen 21 mpg on the 150 mile round trip to our cottage (100% freeway/highway with 4 stop signs each way).

 

[SSGUNNER]

i get upper 20s in my 5.3 at times (50mi average). But you are correct, it is (mostly) meaningless. When I am getting that, it is typically a 50mi stretch that is all "downhill" (descending from the Oregon high desert towards the Columbia River.

So lets talk about that. If its a “meaningless” feature then why did gm put it in the vehicle? Oh same goes for DFM.
Maybe you are speaking for yourself because I hate people speaking on my behalf and what you say is partly true. Give me a hwy in the United States of America that is 50 miles down hill. On my trip I was on flat ground with the stupid DFM kicking in and that avg likes to go up.

Is it a diesel? Otherwise the DIC is lying to you. No way you are getting 50% better mileage than anyone else on here.

Hell no its not a diesel. Im getting low 20’s on my 5.3 on avg. Dont hate me cause im getting better gas mileage than you. Do you want me to lie to you so you can sleep better at night?

To me it seems there may be some buyers remorse in this thread.

 

[SSGUNNER]

That seems to jive with what others are seeing. Just for kicks, I put my 2010 on cruise at 40mph on level ground and saw 25-26 mpg on the instant read. That drops to 20-22 at 75 mph. I have seen 21 mpg on the 150 mile round trip to our cottage (100% freeway/highway with 4 stop signs each way).

Exactly thats what you dont realize, you think its instant. Show me how you reset it on a 21. Maybe on a 2010 u can.

 

[firsttimetahoe]

So lets talk about that. If its a “meaningless” feature then why did gm put it in the vehicle? Oh same goes for DFM.

I think he’s referring to the fact that the best 50mile avg. when you’re driving in that type of condition is meaningless in comparison to what you’d normally get

 

[firsttimetahoe]

Hell no its not a diesel. Im getting low 20’s on my 5.3 on avg. Dont hate me cause im getting better gas mileage than you. Do you want me to lie to you so you can sleep better at night?

Low 20s on a 5.3 on average is nice. But most people look at other peoples MPG and dont realize the variables that can go into it.

I live in NY tri state and that’ll be impossible to get. And when I’m on the highway, my experience isn’t cruising lol. I also have a heavy foot so that’s not helpful. Plus I like to warm my car up in the winter before getting in it, so that’s not helpful.

If lived in an area where it’s mostly highway travel with no traffic, I drove like a grandma and I didn’t mind freezing my balls off for 5 minutes in the morning, then yes I’d expect much better MPG

 

[vcode]

So lets talk about that. If its a “meaningless” feature then why did gm put it in the vehicle? Oh same goes for DFM.
Maybe you are speaking for yourself because I hate people speaking on my behalf and what you say is partly true. Give me a hwy in the United States of America that is 50 miles down hill. On my trip I was on flat ground with the stupid DFM kicking in and that avg likes to go up.


Hell no its not a diesel. Im getting low 20’s on my 5.3 on avg. Dont hate me cause im getting better gas mileage than you. Do you want me to lie to you so you can sleep better at night?

To me it seems there may be some buyers remorse in this thread.

Why don't you give us a 1 or 2 week average instead of a tiny snipet under optimal conditions? BTW, my 21mpg was the average for the 150 mile trip, notan instant reading during it.

 

[drmoose]

So lets talk about that. If its a “meaningless” feature then why did gm put it in the vehicle? Oh same goes for DFM.
Maybe you are speaking for yourself because I hate people speaking on my behalf and what you say is partly true. Give me a hwy in the United States of America that is 50 miles down hill. On my trip I was on flat ground with the stupid DFM kicking in and that avg likes to go up.


Hell no its not a diesel. Im getting low 20’s on my 5.3 on avg. Dont hate me cause im getting better gas mileage than you. Do you want me to lie to you so you can sleep better at night?

To me it seems there may be some buyers remorse in this thread.

dude what's with the anger? I'm pretty sure no one really cares what mileage you are getting.

 

[Koepp2637]

2021 AT4 -~8000 miles - Been keeping track of mileage via Fuelly App since purchased in July last year. I am averaging 14.0 MPG during this time with the best being 17.0. I wonder if there is a difference with the AT4/Z71 body trim vs Denali/etc.

 

[Baja_Bob]

Is there a live mpg screen on the '21 like on the '19, all I find is an average mpg on the trip screen