Real Life MPG 5.3 / 6.2

[SSGUNNER]

The average and best mileage are both 28.3? That makes no sense.

Actually my highest went up to 29.7 on my recent trip, didnt snap a pic as i was busy sight seeing.

Well tell that to my DIC, im just reporting what its showing me lol…

 

[AZCreeker]

Just for comp, our 15 suburban when stock I would do about 24mpg on highway at 70mph
Seems "surprising" that in 22, GM didn't put a more of an emphasis on improving mpg.
Now I understand these are pretty much the largest family rig one can buy. and they should be taken for what they are.
We have a plug in hybrid that pretty much pays for itself compared to dumping 150$ a week in the tank of BELOVED 15 Burban

 

[vcode]

I have the 5.3. Ive had the 6.2 in my Camaro SS and well its a meh powertrain.

Pretty happy with my first 5.3 coming from mopar and the 6.4 and 5.7 but those vehicles are much smaller. Im curious how the G Wagoneer with the 6.4 is holding up with mpg?

13/18 on Premium. I saw a test @13.5 mpg in 50/50 driving. In other words, it sucks. Big time.

 

[xycrazy]

12-14



Yep! Haaaaaa.

The tahoe was loaded down heavy with a weeks full of luggage for four, a heavy bike rack with 4 bikes, xl thule on the roof full of stuff…and it was windy as all get out while cruising down the freeway at 75-85. I sure didnt expect very good mileage, but it was a little worse than i was expecting.

What engine??

 

[vcode]

Actually my highest went up to 29.7 on my recent trip, didnt snap a pic as i was busy sight seeing.

Well tell that to my DIC, im just reporting what its showing me lol…

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

 

[olyelr]

What engine??

Six two

 

[olyelr]

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

Its just the best of a 50 mile average…which really means nothing. If you are cruising slow and easy down the highway on flat ground or a slight downward slop with a tailwind for 50 miles you can certainly get up there with the gassers…but sure as hell wont average that for a tank full.

Like i say, the 50 mile best average number is neat to look at, but it dosnt amount to much of anything.

 

[R32driver]

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.

 

[xycrazy]

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.

Thanks for sharing

 

[drmoose]

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

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.