We met the redesigned 2015 versions of the Chevrolet Suburban and Tahoe, and the GMC Yukon and Yukon XL at the 2013 LA Auto Show. Improved gas mileage numbers have been announced to go along with the improved exteriors and interiors, with city mileage improving by seven percent and highway mileage going up by nearly ten percent; you'll now get 16 miles per gallon in the city and 23 on the highway.

The only applies to models with the 5.3-liter engine, though, not the premium Yukon Denali and Yukon XL Denali SUVs with the 6.2-liter motor. Still, the 5.3 gets you more power than previously, with 355 horsepower and 383 pound-feet of torque underfoot, on top of the improved fuel economy numbers. The 6.2-liter sticks with official mpg ratings of 15 highway, 21 city. There's a brief press release below with words straight from the horse's mouth.
Show full PR text
2015 Chevrolet and GMC Big SUVs Get Better Gas Mileage
Tahoe, Suburban and Yukon models achieve nearly 10 percent gain on highway


DETROIT, 2014-02-24 – The new 2015 full-size SUVs from Chevrolet and GMC go farther on a tank of gas than outgoing models, raising highway fuel economy by nearly 10 percent.

The Chevrolet Tahoe and Suburban and GMC Yukon and Yukon XL with the standard 5.3L engine get an EPA-estimated 16 mpg in the city and 23 mpg on the highway with two-wheel drive – a nearly 10 percent increase in highway mileage over the previous models and 7 percent greater city mileage.

The Yukon Denali and Yukon XL Denali models feature an exclusive 6.2L V-8 rated at 420 horsepower (313 kW) and 460 lb-ft of torque (623 Nm). No other full-size SUV offers as much power and torque. Denali models offer 15 city/21 highway in two-wheel drive models.

About Chevrolet
Founded in 1911 in Detroit, Chevrolet is one of the world's largest car brands, doing business in more than 140 countries and selling more than 4.9 million cars and trucks a year. Chevrolet provides customers with fuel-efficient vehicles that feature spirited performance, expressive design, and high quality. More information on Chevrolet models can be found at www.chevrolet.com.

About GMC
GMC has manufactured trucks since 1902, and is one of the industry's healthiest brands. Innovation and engineering excellence is built into all GMC vehicles and the brand is evolving to offer more fuel-efficient trucks and crossovers, including the Terrain small SUV and Acadia crossover. GMC is the only manufacturer to offer three full-size hybrid trucks with the Yukon, Yukon Denali SUVs and the Sierra pickup. The Sierra Heavy Duty pickups are the most capable and powerful trucks in the market. Details on all GMC models are available at http://www.gmc.com/, on Twitter at @thisisgmc or at http://www.facebook.com/gmc.


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    • 1 Second Ago
  • 49 Comments
      Avinash Machado
      • 9 Months Ago
      Very impressive.
      Julius
      • 9 Months Ago
      Comments like "wow, only 2 mpg?" just make me think that we really should be using gallons per 100 miles as a fuel economy standard rather than miles per gallon. To wit: Over 100,000 miles, a bump from 20 to 22 mpg (from 5 to 4.55 gal/100 mi) means a savings of over 450 gallons, while a bump from 50 to 55 mpg (from 2 to 1.82 gal/100 mi) only saves about 182.
      Beardinals
      • 9 Months Ago
      Faces a mother couldn't even love. I have been a GM fan for a long time, but they really need to fire their exterior designers. Sierra is the only full size vehicle it's not painful to look at.
      Greg Aryous
      • 9 Months Ago
      Ford has a late cycle refresh of its Big SUVs that will get higher power ratings from the 3.5 v6 EcoBoost with at least 370hp n 430ft lbs that should produce similare 23 mpg n perform better. All new aluminum suvs coming in 2 years on the new F150 platform with the powerful n efficient 2.7 v6 EcoBoost n 10 speed autos should get high 20s mpg close to the magical 30 mpg mark... Years ahead of GM!
        jtav2002
        • 9 Months Ago
        @Greg Aryous
        Lets wait til all the vehicles are out to be tested. I always love when people gloat about how much better a theoretical vehicle that doesn't exist yet. Not saying they won't perform better but come on. Additionally, if history repeats itself with how Ford has treated the Expedition, they may not actually offer numerous power trains, so that 2.7 has a good chance of not even making it into a full size SUV. I also don't think the 2.7 is going to be matching the power of what the 5.3 is. That would mean Ford is anticipating the 2.7 to take the place of what the 3.5 currently does. Til Ford actually releases a brand new full size SUV, the GM ones will have been on the road for a few years, for all you know GM will have some things to refresh on it by then.
        montoym
        • 9 Months Ago
        @Greg Aryous
        The current, less powerful (if slightly) EcoBoost in the F-150 can't manage 23mpg as is. Placing a more powerful version of that engine in a larger, heavier SUV isn't going to make that happen. For the record, compared to the Silverado with the 5.3, the fuel economy of these SUVs is identical in the city and highway ratings, with a 1mpg hit compared to the trucks in the combined figure. I'd expect similar results for the Expedition.
      ak47
      • 9 Months Ago
      This thing is HIDEOUS!
      Fishhawk
      • 9 Months Ago
      And boost the ugly by 1,000%
      Andre Neves
      • 9 Months Ago
      Is 10% really something to boast about?
      muspod
      • 9 Months Ago
      Just rented a brand new one...9mpg over 100 combined miles Really?! Great for the family of 6 that tows a 10000 boat everywhere. but who does that?!!
        Bassracerx
        • 9 Months Ago
        @muspod
        100 miles is not really enough miles to evaluate a car's efficiency especially if it is in stop and go traffic.
          muspod
          • 9 Months Ago
          @Bassracerx
          How many you want? It's not going to change is it?!
        jtav2002
        • 9 Months Ago
        @muspod
        A family of 4 who routinely tows a larger boat or an RV can benefit from these vehicles, especially if they don't otherwise need the open bed of a pickup. While plenty of people buy large vehicles they don't need, there is certainly still plenty of people who actually utilize the capabilities of a full size BOF SUV.
          muspod
          • 9 Months Ago
          @jtav2002
          Agreed. But when or how often do you ever see that? 99% are at grocery stores w 1 person in them.
        akitadog
        • 9 Months Ago
        @muspod
        Muspod, A BRAND NEW Tahoe? As in just a hundred or so miles on the odo? If so, I wonder if some break-in procedure accounts for the low mileage to start with. Either that, or you got the larger engine in your rental.
      Jan Calloway
      • 9 Months Ago
      You really have to wonder why even mention the 10% increase in in fuel economy in a vehicle that get less than a average 20MPG. Im sure someone somewhere is going "WoooHooo, it gets one more mile to the gallon!". people will not stop string there coffee for 1 or 2 more miles to the gallon. you give us 5 and more now you have our attention.
        montoym
        • 9 Months Ago
        @Jan Calloway
        That's why we deal in percentages, not the straight numbers. 10% is 10% whether that's in a 10mpg car that moves to 11mpg, a 20mpg SUV that moves to 22mpg or a 50mpg car that moves to 55mpg. Sorry that simple elementary math concepts befuddle you.
          montoym
          • 9 Months Ago
          @montoym
          Interesting how you feel that you understand math better than I, when your lack of understanding is clearly on display in your post and you've said nothing that changes it in your 2nd post. I'm not going to get into a penis-measuring contest with you regarding education, others can read through our posts and determine who is legit and who is full of it.
          Jan Calloway
          • 9 Months Ago
          @montoym
          Trust me, i understand math better then you do. i understand perception and clouding information. Its the same reason gas is 3.29 and 9/10 and the price of a $16,000 dollar car is $15,999. those in marketing tools because they know we are lazy and either see the first number and forget the rest or like percentages, we won't actually do the math and figure it out. Obviously you and somebody else miss the point. they will charge you an arm and leg for something that gets not much better gas milage then last year but there are going to people who think thats a good thing, its not
      MechE
      • 9 Months Ago
      I want to take an exact-o-knife and slice that headlight accent off.
      tsktsk3
      • 9 Months Ago
      Too little too late--with other full size pickups from Ford and Chrysler getting better MPGs, you'd think GM would have tried harder to do better. 8-speed transmission? Diesel? (supposedly on the table), and the mild-hybrid system that was shelved... I would seriously like to buy this SUV, but 10% needs to be more like 25% without compromising towing.
        BGJ
        • 9 Months Ago
        @tsktsk3
        Hey guess what the F150 gets 23mpg highway... why does that number sound familiar... oh right ITS THE EXACT SAME, and thats with only their V6 !!!!!!! Their V8 gets 21mpg. Do some basic googling before opening your mouth and letting the crap fall out.
          montoym
          • 9 Months Ago
          @BGJ
          20% for the city figure maybe, and that's on the high end. Weight reductions won't do all that much to the highway figure, the mass is already moving at that point. Too bad that's the figure everyone looks at and touts because it's the better number. I think if they manage even a 15% increase, it will be significant. That's no small achievement on it's own understand, I just don't believe that 20% should be a figure to expect. They'd need a much greater weight savings than 700lbs. to achieve that. Time will tell I suppose.
          Brian
          • 9 Months Ago
          @BGJ
          Actually BGJ, the 2015 Aluminum F150 has not released mpg figures yet, but most are expecting the 700lbs weight reduction to net an additional 20% mpg. Plus with all that weight up high, it will lower the center of gravity and it should handle and drive like no other full size truck ever has. It's extremely smart! I bet GM goes aluminum within 2 years to keep up. My dream is a full sized SUV with a 4.0L diesel and aluminum weight savings which should equate to about a 30mpg full sized capable SUV. Wonder how long I have to wait for that?
      ROLO
      • 9 Months Ago
      If they didnt boost millage then they was no point.
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