Lifetime Fuel Economy - 6.2 liter engine

[JWBGMC]

I drive a 2016 Yukon Denali that has the 6.2 liter engine paired with the 8-speed transmission. I have approximately 23,000 miles on the vehicle. My lifetime fuel economy is 18.5 mpg. I'm curious: (1) would the 10-speed transmission give better fuel economy; and (2) do others with the 6.2 liter engine get similar fuel economy results? On a flat surface on the highway, I get about 23 MPG. I do think that the numbers are impressive given the weight of the vehicle.

 

[Demer]

I drive a 2016 Yukon Denali that has the 6.2 liter engine paired with the 8-speed transmission. I have approximately 23,000 miles on the vehicle. My lifetime fuel economy is 18.5 mpg. I'm curious: (1) would the 10-speed transmission give better fuel economy; and (2) do others with the 6.2 liter engine get similar fuel economy results? On a flat surface on the highway, I get about 23 MPG. I do think that the numbers are impressive given the weight of the vehicle.

I've got a '16 XL Denali and I get very similar results as what you have posted. Very pleased with the fuel mileage of this giant SUV. I dropped a bit when I put on larger tires, but I'm waiting to get a tune back from Black Bear to get my lost mpg back, extra power, and smoother shifting. Win-win.

 

[humer101]

I drive a 2016 Yukon Denali that has the 6.2 liter engine paired with the 8-speed transmission. I have approximately 23,000 miles on the vehicle. My lifetime fuel economy is 18.5 mpg. I'm curious: (1) would the 10-speed transmission give better fuel economy; and (2) do others with the 6.2 liter engine get similar fuel economy results? On a flat surface on the highway, I get about 23 MPG. I do think that the numbers are impressive given the weight of the vehicle.

Is just depends on the way you drive the vehicle,
Also where you live if the terrain is flat or with mountain .
Also how many people and load you pulling.
[emoji848]

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[hairscramlber]

23 on the highway for a 400 plus horsepower 6500 lb vehicle is pretty darn amazing if ya ask me

 

[abright52]

We usually only average 15mpg on our 2011 6.2L Denali. Probably 75% city driving and 25% Highway at 80-85 MPH.

 

[Doubeleive]

I get about 10.8-11.1 2012 6.2l awd combination city hwy shows you how I drive and I have calmed down a LOT. the awd takes a bite off the economy.

 

[duke90]

I get roughly the same mileage as you posted. 17' XL with 11k miles. Just wish it had more power.

 

[humer101]

On my 2015 xl Denali 59k miles I was getting 14.8 city.
17.6 highway must of the time 2 adults and 5 kids full luggage I mean pack. [emoji848].
On my 18 xl Denali unknown only 500 miles.

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[Big Mama]

Yes a 10 speed would get better mileage but not that much. To give you an idea of how good yours is I have an 07 Denali with a 6 speed auto and lifetime is 12.4. I’m not a hard driver and live in a fairly flat area. My highway mpg is 17.

 

[hairscramlber]

Do you guys run premium ??