Real Life MPG 5.3 / 6.2

[SSGUNNER]

To all the non believers that the 5.3 gets great mileage, possibilities are endless my friends…

 

[firsttimetahoe]

To all the non believers that the 5.3 gets great mileage, possibilities are endless my friends…

I'm genuinely confused as to why people who buy a Full Size SUV with a 5.3 V8 engine (or those even who upgrade to 6.2) have concerns about their vehicle's fuel efficiency lol. Maybe you should have thought through what you were purchasing

 

[SSGUNNER]

I'm genuinely confused as to why people who buy a Full Size SUV with a 5.3 V8 engine (or those even who upgrade to 6.2) have concerns about their vehicle's fuel efficiency lol. Maybe you should have thought through what you were purchasing

Oh believe me I am not concerned one bit. I drive like I stole it and bust donuts where I can. My post is to show higher mpg is capable with the lil Ol 5.3 and not just the duramax or previous gen 6.2’s. Now I ask, how did that get your panties all tied up?

 

[firsttimetahoe]

Now I ask, how did that get your panties all tied up?

Oh I'm not lol. I saw another thread where people were talking about canceling their orders because of the gas price surge. I just find it odd and confusing. I just thought it was common sense - The larger the car & the larger the engine, the less friendly it is at the pump

 

[R32driver]

I too would guess most who can legitimately afford one of these vehicles probably aren’t too concerned with the fuel mileage or rising gas prices. Others who are trying to keep up with the Jones’s and barely managed to qualify for one on a 10 year loan are probably stressing out watching the numbers at the pump rise

 

[tall cool thing]

I just drove my 2022 high country 120 miles, mostly highway and two lane roads with easy passing. I run all the time 12 to 15 over. This trip no different, ran mid upper 60s to low 80s. Average 16.5 mpg, which for this big boat, I am happy with. The performance of the 6.2 is wonderful. My hemi ram truck didnt do any better, so guess I am used to that mpg.

 

[xycrazy]

I just drove my 2022 high country 120 miles, mostly highway and two lane roads with easy passing. I run all the time 12 to 15 over. This trip no different, ran mid upper 60s to low 80s. Average 16.5 mpg, which for this big boat, I am happy with. The performance of the 6.2 is wonderful. My hemi ram truck didnt do any better, so guess I am used to that mpg.

16.5 with mostly highway is not what I would consider as good mileage. My 5.3. 2017 Yukon does currently 20mpg on highway and did previously 24 when it had 20k miles less. 16 in city. I was expecting similar mileage with the new 5.3 and a bit less with the 6.2

But 16 ish is concerning to me. It's not that I can't afford it. It's just that it's not what I was expecting since I do not consider the guy from the gas station my best buddy. It just sucks when you need to fill up every 280 miles or so.
Right now I get at least 380-400 miles out of the tank with 60% city / 40% highway - more with more highway usage

 

[drmoose]

5.3, Using the trip counter, one of which has not been reset from the start, I am at 17.9. This matches pretty much what I see on longer roads trips with some city driving, with the other trip counter. On the highway, I see 18-24 using the 50mile average computer, depending on wind and slope. City driving around us (not a lot of stop lights), its 14-16.Honesty this gets better gas mileage than my old 2004 Pathfinder, and barely worse than the Odyssey we used to have.

 

[tall cool thing]

XYrazy, do you run 83 to 85 miles and hour? I doubt it, I do all the time. For me, 16.5 is really good for that speed. My SS camaro does 25 mpg at 85, but that is a little car. So your concerns at 85 are probably not accurate for the speed you drive. That is why I put my speeds in the comment, so people would have an understanding of the mpg.

 

[xycrazy]

XYrazy, do you run 83 to 85 miles and hour? I doubt it, I do all the time. For me, 16.5 is really good for that speed. My SS camaro does 25 mpg at 85, but that is a little car. So your concerns at 85 are probably not accurate for the speed you drive. That is why I put my speeds in the comment, so people would have an understanding of the mpg.

You're right. I missed that. I get 20mpg 70 though. But yes for 85 I'd say it's fine

 

[tall cool thing]

I wish i could drive 70, but cant do it. Like the speed as of now. 20 mpg is awesome for a vehicle this size. Have to say the 6.2 is a lot of fun to drive. Before I bought this vehicle, I drove my in-laws yukon with 5.3. Never was much impressed with the motor. Fine for basic driving, but nothing to say wow, this is fun. Had several ram trucks for last 10 years or so. Anything mpg in the upper teens is good for me, all I have seen for that long. The tahoe is a much bigger vehicle, so pleased with the mpg and the vehicle overall. Glad I made the jump to the tahoe.

 

[Mar48]

I was shocked to see I'm getting like 12 MPG around town... but short drives... maybe 17 on a combined one, but definitely not 15/20

 

[Astanwyck]

The real deal is to manually check and not solely believe the vehicle display. I have an fuel app that does it for me. I can look at the logs to compare brands and seasons as well.

What app is it?

 

[Reddevil96]

My last 1700 mile road with maybe 10-15% city time averaged 19.5 and I held 80-84mph while on the interstate. Around town if I enjoy my self its 10-12mpg, but if I drive like grandma 14-15mpg is doable. I also follow the owners manual recommendation for high speed driving to run 39psi tire pressure, actually tread contact is just about perfect, so the door saying 36 is absurd.

Im in a 21 XL Denali 6.2l at time of the trip it had 1000 miles with 2 adults a 2 year old and luggage, currently have 3000 miles

 

[ljn21]

What app is it?

Probably Fuelly

 

[kcb14214]

So my wifes 2022 Yukon w the 6.2l is getting 15-16 which is under what the 2018 we traded in got.

 

[RST Dana]

What app is it?

Fuelly: MPG & Service Tracker App - App Store

Download Fuelly: MPG & Service Tracker by Fuelly, LLC on the App Store. See screenshots, ratings and reviews, user tips, and more apps like Fuelly: MPG &…

apps.apple.com

 

[xycrazy]

So my wifes 2022 Yukon w the 6.2l is getting 15-16 which is under what the 2018 we traded in got.

Is that the XL or regular version? What's her driving profile? Mostly city?

 

[tom3]

Real world mileage on our 2019 with the 5.3. Probably 60 to 65% highway and the rest mostly urban city driving, not red light to red light on every city block. Since new, now at 17K miles with the DFM mostly in operation. 22 mpg total average, 18 mpg in city driving. Get about 24 mpg highway at legal speeds with vacation loading and just the two of us. Run BP Silver gas constantly. Fluke 50 mile average best readout hit 30 mpg last year.

 

[TrueAt1stLight]

I took a 350 mile round trip in southern MN and averaged 20.9 MPG at 90:10 hwy:city miles, at 70-75 MPH hwy. I lowered my speed by approx 10 MPH on the hwy and was really pleased to net this! My vehicle is a 2022 Denali standard wheel base with the only mods I’m running Michelin Defender tires.