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GMC Acadia Real World MPG



  • You CAN get to Vegas on Acadia. On highway it easily gets 20 MPG, and drives for 400 miles on a tank of gas. However in city it consumes gas by gallons. Our city MPG is 13-14 and range 260-280 miles.
  • Thanks victor! I hope so! I was pretty bummed last night. At least you get to give yours back. I paid cash for mine. I thought I had received such a great deal! I hope someone comes up with a solution for this. I do more city driving than highway driving.
  • @victorg009..........It's obvious you don't own a GMC Acadia because an elderly person driving in the right lane doing 50mph will NEVER get 20mpg!!!!!!!!!
    I personally drove my wife's Acadia Denali for 230miles straight and suffered doing 60mph just to prove a point and I was able to get 16.2mpg.......BIG DEAL! I own a 2010 Dodge Ram 1500 w/HEMI, 390HP and driving it as I would everyday which is not like an elderly I am still getting 15.4mpg around town and 22mpg on the highway.I purchased this truck without worrying about fuel consumption and didn't care and it still exceeded my expectations.
    I was always told that the GMC are the better of the GM lineup in trucks...YEAH WELL THAT'S BS!! Thank god I leased this car BUT unfortunately I'm stuck with this junk until August 2014.
    I will NEVER NEVER NEVER consider a GMC or recommend to anybody. The company is full of IT and I'm surpirsed GM can allow this.
  • @hsalinas: I do own 2010 Acadia SLE AWD, and it gets 19MPG on roundtrip from Bay Area to Tahoe which includes climb to 7000' mountain. On flat freeway it can get 20+ MPG, but there are no flat freeways in Bay Area.

    Acadia weights 3 tons and it takes lots of gas to accelerate it after stopping in city driving. The only way to improve MPG is to accelerate slower.

    Another factor is Acadia transmission is programmed to downshift immediately when you touch gas pedal even slightly, and when downshifted it accelerates much faster and therefore consumes more gas. This sporty transmission mode is similar to Overdrive OFF in our old 4-cyl Camry, and with Overdrive OFF even Camry burns gas like Acadia.

    I do like our Acadia when we go on family trips. I hate it when filling at gas station or every time I look on gas level gauge.
  • I have had my FWD Acadia for 3 months now and have driven approx 2500 miles.
    I have been most unhappy with the gas mileage I have been getting (less than 16mpg in general driving, much of it highway).
    I mentioned this to the Service advisor at my dealership and was told "That's all you're going to get"
    I quoted the sticker mileage of 24 Hwy and was told that was a very optimistic number under perfect conditions.
    BS! The tests behind those numbers were changed a few years ago to be more realistic!.
    I took my first 400 mile purely highway trip last weekend and drove 70mph. I got 21.8mpgs.
    Better than some people are reporting but still not what I was hoping for.
    To put things in perspective here - that is 2mpg LESS than I used to get driving a 1995 Buick Roadmaster station wagon with a 5.7L V8. With 16 years of "Progress" I expected the Acadia to do better.
    I also own a 2500HD Duramax Crew-cab pickup that I use to tow a fifth wheel. I have driven the SAME 400 mile trip with my truck (unloaded) and got 20mpg.
    Not good enough GM.
    But I leased it so am stuck for another 3 years. I will NOT lease another one.
  • gmcustsvcgmcustsvc Posts: 4,251

    I apologize for the mileage you are getting. I would encourage you to take your vehicle into your local GM dealership to be looked at. Please keep me posted on any information.

    Thank you,
    Caron, GM Customer Service
  • Hi Caron,
    Thank you for responding.
    I HAVE been back to the dealer. Their response to 18mpg (mostly highway) was "that's all you're going to get" and when asked about the 24MPG Highway rating was told "That's very optimistic under perfect conditions"
    They then told me to let the engine rev wide open now and again and wait until I had a "few thousand" miles on the car before being critical.
    Let's put things in perspective! I'm a GM retiree Manager who used to drive a company vehicle. I ALWAYS exceeded the published (and optimistic pre-2008) mileage ratings from day1 for EVERY car I drove.
    Look at my previous post for the mileage I was getting from a 1995 Buick Roadmaster wagon and a 2005 2500HD pickup for example.
    For vehicles slightly closer in comparison I regularly got 16/27mpg out of the plastic U-Vans (Lumina APV and Pontiac Transport with a 3800 push-rod V6) and comparable numbers out of the later U-Vans (Venture and Montana) with a pushrod 3.4V6.
    Granted the Acadia is a bigger vehicle, but with all the technical advances and a six-speed transmission I was optimistic that I would get AT LEAST the posted (and supposedly more realistic) 24mpg.
    My last tank (filled yesterday) with a mix of highway (75%) and major road (25%) driving, I returned 15.1mpg!
    My old Buick ALWAYS gave me 20mpg in identical driving. In fact I used the mileage instead of the fuel gauge to judge when to fill up, it was THAT consistent.
    As I said before, 16 years of technological advances do not seem have found their way into this Acadia.
    And I'm obviously wasting my time at the dealer!
    Like I said - NOT impressed at all!
  • The mileage I quoted for the Lumina/Transport/Venture/Montana should have been 26/27, not the 16/27 I mis-typed!
  • Hi Caron - thank you for your reply. Is there anything in particular that we should tell the service department to check? Is it your opinion that we should get a higher mileage?
  • Hi rerman, just wonder if your service dept was able to identify the problem with your low mileage?
  • gmcustsvcgmcustsvc Posts: 4,251
    I apologize I do not have a recommendation. They will know where to look and what to look at.
    GM Customer Service
  • shen1shen1 Posts: 4
    I have had my Acadia for 5 months now and I am averaging about 13.5 MPG. Obviously this is no where near the range on the sticker which is 17/24. I would have never even considered this vehicle had I known that the gas mileage would be nowhere near the range on the sticker, but since this vehicle got great reviews for fuel economy I thought it would be a good vehicle for my family. I was completely wrong because I had no idea what it was going to cost me to fill it up! When I got the vehicle the salesman said to use Top Tier Gas and that they had a lot of people complaining about fuel economy, but he led me to believe that if I put "good" gas in that the mileage would be better, of course as I learned, Top Tier Gas does nothing for fuel economy. I do not have a heavy foot and my tires are properly inflated, recent oil change, etc. I have tried it all and nothing has helped my fuel economy. I took it in to the dealer two weeks ago to get other work done and also inquired about fuel economy at that time which they basically just ignored. I am very frustrated and made a second appointment, but this time just to have the fuel economy looked at. Has anyone had any luck getting the dealership to do anything about this problem???
  • steverstever Posts: 52,572
    edited October 2011
    How many miles do you have on it? Many new cars take several thousand miles before the mpg starts to get in line with the EPA estimates. My last new car didn't start hitting its stride until ~10,000 miles.
  • shen1shen1 Posts: 4
    7100 miles. Fuel economy hasn't changed at all from the day we drove it home.
  • steverstever Posts: 52,572
    Doesn't sound right. I'd open a case with GM. Since you are under warranty, there shouldn't be a diagnostic fee if GM customer service wants you to revisit the dealer.
  • shen1shen1 Posts: 4
    I agree that it doesn't sound right, however, I took it back to the dealership today to have it checked a second time. The Driver Info Center MPG currently reads 13.9 and the service manager says that "there is nothing wrong and this gas mileage is to be expected". He then went on to tell me that it could take 10,000 or 20,000 miles until the car is broken in. I have owned 4 new cars in my life with 3 of them being GM vehicles and this is the first new vehicle that does not get at least the minimum fuel economy stated on the sticker. I have read that EPA mileage ratings tend to be conservative and I have even seen other manufacturers state that they expect you to get even more MPG on the sticker, however, GM seems to be indicating that the EPA fuel rating is in ideal situations and that you should not expect to actually achieve such gas mileage. Seems very unreasonable to me. I am extremely disappointed in the response I have received so far.
  • well, my acadia has 28k miles on it. what excuse will they give me??
  • steverstever Posts: 52,572
    edited October 2011
    Some people do get good mpg right out of the gate. Others take a while but at least the mpg should be trending upward as the vehicle breaks in.

    The info centers have gotten pretty accurate but I'd manually check 4 or 5 tanks too.

    From what I've read, the EPA testing is pretty rigorous even though the conditions are still well controlled by the testing lab. That same "EPA testing" pretty much lets the manufacturers off the hook though when vehicles don't live up to the ratings. Just stumbled on this "fine print" while nosing around with a net search - " A disclosure about fuel economy or estimated annual fuel costs under this section does not establish a warranty". (link)
  • I just dropped my truck off at the dealer. We'll see what they say......
  • shen1shen1 Posts: 4
    Just wondering what the dealer had to say this time. How many more miles do you need to drive it before it starts getting better gas mileage?
  • gmcustsvcgmcustsvc Posts: 4,251

    Sorry to hear about the gas mileage you are getting on your new vehicle. Please keep us posted on any information from the dealership.

    Thank you,
    Caron, GM Customer Service
  • gmcustsvcgmcustsvc Posts: 4,251
    I am glad to hear that you are working with your local dealer. Please feel free to keep us posted. If you have any questions in the meantime please feel free to contact Christina by email. Thank you.

    Tricia, GM Customer Service.
  • Hi Tricia - please forward Christina's email and I will follow up with her. I see quite a few replies and condolences from GMC representatives. Are there any proactive measures being done on your end? There seems to be alot of your customers online complaining about the same problem. the under inflated tire response doesn't appear to resolve the problem. i really hate that I paid cash for the vehicle. Otherwise i would give it back.
  • gmcustsvcgmcustsvc Posts: 4,251
    You can contact her by clicking on the gmcustsvc username and using that email address.

    Tricia, GM Customer Service.
  • I have 2600 miles on a 2011 Acadia Denali the gas milage is horrific. Been to the dealer, but of course everything is "fine". I am averaging 14 mpg with 90% of the driving on a highway. I will never buy a GM product again. I also have a Nissan Armada hich gets 17 - 19 mpg driving the same route I take my Acadia. The rating is completely false. Never have I been so upset with milage on a car. Average range on a tank is 300 - 325 miles. Are you kidding me?
  • I think there are enough of us to do a class action! Gas is to high to be stuck with a new SUV that doesnt do what the rating states! Not even close!
  • GM dealerships are of no help. My 2011 Acadia Denali is awful for mpg. I get the typical "everything looks fine" when 14 mpg overall is anything but fine. I am asking the dealer to take my vehicle back. 300 mile range is not acceptable when 90% of the driving is highway. No more GM product for my family.
  • I am pushing the dealer to take my car back, (lease) and refund the deposit. They acted like my problem was isolated, but of course it is no problem. When I read ALL of these items, it just made me more pissed off. ANd the BS about breaking a car in..... what is this 1975? Come on. I went back to an Americal car, thinking it might be ok, but I have learned my lesson. I should have stuck with an X5. Highway mpg was >25, and service included.
  • gmcustsvcgmcustsvc Posts: 4,251
    I apologize for your frustrations. Have you spoke with GM Customer Assistance? If not, I would recommend setting up a case with them. I would be happy to do so for you. Please feel free to email me directly.
    GM Customer Service
  • al63017al63017 Posts: 149
    Wow glad I stopped by here. Was looking at Terrain Forum and their gas mileage is also terrible along with Equinox owners with 4 cyl engines. Was
    going to look at Acadia but looks like I am back to European or Japanese cars.

    My runabout is a 2011 VW Jetta Diesel 45 mpg is common every morning when I drive to work. Has been flawless. These cars are the best kept secrets and the new Passat is bigger and more Accord Camry size. I wanted a SUV how is GM going to help all these people getting 14 mpg. The Equinox forum is full of mpg complaints from many more people than here.
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