Denali 6.2 owners , and Tahoe Rst 6.2 please post your MPGs and contribute by posting here..

[JJ461]

Hello, long time lurker...

I have a 2018 Denali, city avg can vary anywhere between 15 and 18, on the highway avg is 22-24.

Towing a 21' bass boat my normal 74 mile round trip I can usually average around 12.8.

 

[hcvone]

I have a 2019 Callaway Tahoe 6.2, gets 11 city and 27 highway, OF COURSE it depends on how you drive it, can empty the tank pretty quick, it's also surprisingly fast

 

[dnt1010]

2018 Sierra Denali Ultimate (6.2) average 21.3 over its 7,000 mile life mix of city and highway I can easily get over 25 on a highway trip. The 6.2 is enjoyable to drive you just have to love that nudge forward when accelerating at a moderate pace the thing wants to be let loose. I have had a 2016 / 2017 and now this 2018 they all have averaged about the same mpg.

 

[cardude2000]

I have a 2019 Callaway Tahoe 6.2, gets 11 city and 27 highway, OF COURSE it depends on how you drive it, can empty the tank pretty quick, it's also surprisingly fast

That’s astonishing highway mileage. That’s 20% HIGHER than the smaller yukon engine.

 

[Big Mama]

Gotta love blowers. Under the radar until some unsuspecting youngster tries their luck

 

[Denali4181]

Was getting 17 city and 23 on highway with 17 Denali that had 6500 miles on it.

 

[Bigbird]

I have a 2018 Yukon XL Denali with 18212 miles on it and average 14-17 in the city and 21-24 going to Florida and back from NY I can get 6-8 if I want!!! It goes extremely well for a house on wheels A lot better than my 2015 with the 8 speed. The 10 speed is a whole new thing

 

[Got-Boost?]

Our 2016 Denali 6.2/A8 had a lifetime average of 17.8mpg with a best of 24.4 driving from TX to OH. http://www.fuelly.com/car/gmc/yukon/2016/gastogo/391851

Our 2019 RST Suburban 6.2/A10 isn't even broken in. First tank was 18.8 and second is 20.1 with 719-miles on the clock. I will say the A10 makes the truck feel like a COMPLETELY different vehicle compared with the A8. Wife and I love it so far.

 

[BMPNUGLS]

I’ve got 28 before - best above...while set on cruise (60mph) for a long trip running 93 octane with 8oz of marvel mystery oil in the tank (run it from time to time to help keep things clean)...

 

[GTNator]

Our 2016 Denali 6.2/A8 had a lifetime average of 17.8mpg with a best of 24.4 driving from TX to OH. http://www.fuelly.com/car/gmc/yukon/2016/gastogo/391851

Our 2019 RST Suburban 6.2/A10 isn't even broken in. First tank was 18.8 and second is 20.1 with 719-miles on the clock. I will say the A10 makes the truck feel like a COMPLETELY different vehicle compared with the A8. Wife and I love it so far.

Everyone says this, the 10 speed feels completely different and way better than the 8 speed. GM sure did a good job with improving in their transmission.


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