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GMC Terrain Real World MPG

39 messages,  Last post on May 21, 2013 at 1:17 PM

You are in the GMC Terrain Forum.

What is this discussion about? GMC, Fuel Efficiency (MPG), SUV

    

Messages Page 4 of 4

#30 of 39 Re: GMC Terrain NEVER gets the MPG they claim! [mea5] by gmcustsvc

May 12, 2013 (2:29 pm)

Replying to: mea5 (May 07, 2013 8:46 pm)
Hi mea5,
 
I am very sorry to hear that you are unhappy with your MPG. I have provided a website that can help explain the determining factors associated with MPG. Hopefully it helps shed a little light:-) http://www.fueleconomy.gov/feg/factors.shtml
 
Crystal L-GM Customer Care

#31 of 39 Re: GMC Terrain NEVER gets the MPG they claim! [gmcustsvc] by bwall2

May 12, 2013 (4:07 pm)

Replying to: gmcustsvc (May 12, 2013 2:29 pm)
Hi Crystal,
 
Why don't you tell the customer to go to Star GMC, Quakertown, PA? They did a consumption test on our 2011 Terrain and said it does 38.8 - yes, 38.8 MPG! We have asked them to tell us where the fuel goes - guess it just evaporates somewhere!
 
The imports actually get what is on the sticker - wonder who pays off who to get those inflated numbers on the GMC products???
 
Bernie - a very dissatisfied customer

#32 of 39 Re: GMC Terrain NEVER gets the MPG they claim! [bwall2] by gmcustsvc

May 13, 2013 (9:05 am)

Replying to: bwall2 (May 12, 2013 4:07 pm)
Hi Bernie,
 
I can understand your frustration. MPG is generally tested during optimal driving conditions. This website may help you also http://www.fueleconomy.gov/feg/factors.shtml. If you are unhappy with the findings of the dealer you have been working with. I would suggest visiting another dealer. If you would like me to locate another dealer and set up an appointment for you send me an email at socialmediagm.com "Attn Crystal' in the subject header. Please include your full name, address, phone number, Vehicle Identification number, and approximate mileage on your vehicle.
 
Best Regards,
Crystal GM Customer Care

#33 of 39 Re: GMC Terrain NEVER gets the MPG they claim! [gmcustsvc] by steve_ HOST

May 13, 2013 (10:05 am)

Replying to: gmcustsvc (May 13, 2013 9:05 am)
MPG is generally tested during optimal driving conditions.
 
The "gasoline" used may be "optimal" but the EPA test is designed to simulate the driving environment. I don't think it's fair to say it's intended to test mpg under optimal driving conditions. Details about the test are available at that link you posted.

#34 of 39 Re: GMC Terrain NEVER gets the MPG they claim! [gmcustsvc] by bwall2

May 15, 2013 (1:12 pm)

Replying to: gmcustsvc (May 13, 2013 9:05 am)
Hi Crystal,
 
Sorry to disagree with you, but other vehicles get a whole lot closer to the EPA estimate that this vehicle. Feel free to locate another dealer; it will not make any difference other than they will be more accurate if they do a consumption test. To think STAR GMC, Quakertown, PA says it does 38.8 mpg is rather strange!
  
I have all the information for you - if you think it would make any difference.
 
Bernie

#35 of 39 Poor MPG on 2012 terrain. by xljake

May 20, 2013 (1:45 pm)

Looks like I am joining a group of unhappy Terrain owners. For the record, we like our Terrain, my only complaint, to date, is highway MPG. I purchased my 2012 Terrain SLT 4 banger in October 2012. Since purchasing, we (my bride & I) have driven 10600 miles and filled the tank up 31 times. I have detailed records of actual miles/total gals/MPG on each tank of gas. (No, I am not anal, I spent 35 years in field sales and habitually kept detailed records for tax purposes.)
My average, to date, is 23.37 mpg with an absolute best MPG of 25.97 mpg (RT) and an absolute worst at 21.24 mpg.
  
My dealer has been supportive; my issue is with GMC customer service. They have taken a "nothing we can (will) do", "tough crap" attitude. The regional guy (jerk) went so far as to say the published MPG numbers were from EPA and not GMC suggested mileage (yet they are posted in all GMC advertising) and even suggesting that nothing was wrong with the Terrain, maybe our driving habits were the real problem or we were not buying quality gas. This got my dander up, since we only use gas from three major companies, I have purchased 15 GM vehicles since 1963 and currently own a 2000 Buick Regal V6 with over 221,000 miles which still gets 27-28 highway mpg. This is the 1st GM vehicle which did not meet my expectations and this jerk says nothing is wrong, its my fault...
 
I just want to share my information and learn if anyone has been able to get past the low level "rejecters" to get someone with authority, or at least, a genuine empathy with our problems. I have details; I just want someone to care enough to look at my information. So far they have been too busy saying "we understand your frustration" but not taking any time to look at my data or offer any suggestions for a resolution to the problem. xljake

#36 of 39 Gas Mileage by safety9285

May 20, 2013 (2:18 pm)

I tried to like the Terrain but I got to take a two day test drive (I know the dealer) and I could not get anywhere near the mileage estimate. I took it back after the test drive and bought another Acadia. The dealer told me the the small 4 cylinder engine, even though rated for 87 octane, just won't get the mileage on that gas. Then add in the fact that it is almost impossible to buy gas in my area with out 10% ethanol (ethanol kills gas mileage) and you are in a lose lose situation.
 
I have been watching this forum for a year and I have a friend who own a Terrain and one who owns an Equinox. No way, no how, does anyone get anything close to the mileage promised.
 
Other than that, is seems like a nice vehicle.
 
Don't buy if for the gas mileage.

#37 of 39 How EPA Got These High Numbers by technojunkie1

May 20, 2013 (3:47 pm)

Checked the EPA site (See earlier postings for links) and read the test parameters and results for mileage. Turns out the average HWY speed they used is 48 MPH. With a Max of 60 MPH. So if you care to drive that slow you to can get these numbers. This looks like serious manipulation of data. Perhaps an investigation into why they would allow such slow speeds to achieve the HWY numbers is in order. Last time I looked, the national speed limit was 65 on the HWY. The numbers should at least reflect that as the average speed on the test. The questions is why do other vehicles achieve their HWY numbers at realistic HWY speeds?

#38 of 39 Re: Poor MPG on 2012 terrain. [xljake] by bwall2

May 20, 2013 (4:00 pm)

Replying to: xljake (May 20, 2013 1:45 pm)
You must bring it out to Pennsylvania. We had a comsumption test done at Star GMC, Quakertown, PA - and guess what they said? It does 38.8 mpg! Not bad - I just want to know where all the gas is going - !!!
 
Of course the "authorities" of GM believed this and said "case closed."
 
We too can only get low 20's. On highway, 2200 miles - no city driving - we got 27.5....far from 32!
 
This is a bad deal - and GMC could care less; after all, we helped bail them out of bankrupcy - so they are now happy as can be.

#39 of 39 Re: Never Again Will I Buy A GMC After The Terrain [bwall2] by thetwofour

May 21, 2013 (1:17 pm)

Replying to: bwall2 (Mar 27, 2013 5:47 pm)
im not trying to start anything here but from all 38 posts before me there are multiple promoting the prius and last i checked this is a terrain forum. If you hate the terrain or GM for that matter start a new thread where people want to read that. Also like sarah explained multiple times how the EPA does the testing, im hoping that it can finally be grasped but for those here we go again, GM does NOT do the testing they have ZERO control over how an outside independent organization does their job.

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