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So, what kind of real world mileage figures are people getting. Please state which engine is in your vehicle. Thanks
 

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11.5L/100km (20 MPG) average, with 50/50 city and highway so far.

Edit: Mileage has changed a bit, now holding steady at 12.5L/100km (18.8MPG) or roughly 600km (372 miles) per tank. Just did a 650km all highway trip this weekend, mileage stayed at 12.5. Although, average highway speed was 120-130km/h (75-80 mph).
 

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Hey Guys, I think all MPG postings really should state the Model and engine and wether or not it is AWD or FWD.

My dealer has a SLE-2 FWD with V4 and is seeing 26 mpg highway at sealevel here in Portland. Not even close to the 32 as advertised.

Maybe after the engine breaks ina bit. I'm driving the same exact package as stated above from PDX to SLC this month and wil report on what I get out of my unit.
 

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I have a 4cyl FWD SLT2 in "Eco" 99% of the time. I have been driving it pretty gently (read: extra fuel-friendly) with roughly a 65/35 highway/city mix.

Currently says 28.2 Avg Mileage over these first 500 miles.
 

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I purchased my 2010 Terrain SLT2 AWD mid-October and promptly drove it from just north of Indy to the Smokies and got 24.5 mpg by the computer, round trip including driving around Pigeon Forge, Gatlinburg, and up and down hills. I really enjoy this vehicle, oh btw my other vehicle is a 2008 Enclave, bigger, quieter, less mileage.

I traded a 2009 Traverse in, got a great trade-in (surprise), happy to be rid of it, no problem, just a let down after the Enclave
 

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raptor22 said:
I purchased my 2010 Terrain SLT2 AWD mid-October and promptly drove it from just north of Indy to the Smokies and got 24.5 mpg by the computer, round trip including driving around Pigeon Forge, Gatlinburg, and up and down hills. I really enjoy this vehicle, oh btw my other vehicle is a 2008 Enclave, bigger, quieter, less mileage.

I traded a 2009 Traverse in, got a great trade-in (surprise), happy to be rid of it, no problem, just a let down after the Enclave

I also had an 08 Enclave. Returned it yesterday as lease was up and picked up a new Terrain SLE2 4cyl. awd. I wasn't going to buy a G.M. but after trying out a few others (Honda CRV, Toyota Rav4 & Hyundai Santa Fe) there was no comparrison. Had an Equinox ordered but it never arrivred on time so I took the Terrain they had in stock. Didn't like the looks of the Terrain when I first saw it but after seeing a few around & lots of pictures it has grown on me. Besides the better 1/2 liked the looks better. Went out for supper last night. The DIC is showing 8.9 liters /100 km. with 250 k.m. on the odometer.
 

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I have a -1 with the I-4 cyl. engine and 7200 miles in six weeks of ownership. I live in East Georgia where the terrain (no pun intended) goes from tabletop flat to gently rolling hills as I approach Augusta. I have slowly climbed from 24.5mpg to this morning's high of 26.569mpg, calculated the old fashioned way. My dash computer is always more hopeful by at least 8/10ths of a mile per gallon. I have yet to squeak more than 480 miles from a tank, which holds 18.8 gallons. I use Cruise Control as soon as the Jimmy reaches the minimum speed of 25mph, conditions and circumstances permitting.
I've tried every combination of vehicle equipment to improve my mileage, from Eco mode to gentle acceleration and manual shifting the tranny, to no avail. I refuse to drive a legal speed, prefering to play 8 you skate, nine you're mine. But the faster the pace, especially above 65, mpg suffers accordingly. On an Interstate blast averaging 70mph over 320 miles, I got a hideous 23 mpg!
I don't appreciate the false advertising of 32mpg Highway (with a possible 38mpg indicated in the fine print on the window sticker) and 600 miles per tankful. But the bright side is my F150 only got 14mpg!
 

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In addition to our reliability survey, TrueDelta conducts a real-world fuel economy survey that, unlike others, includes driving style and driving conditions. Results so far for the Terrain:

Real-world GMC Terrain gas mileage

And for the Equinox:

Real-world Chevrolet Equinox gas mileage

More participants would help us sort out the impact of the various variables (need a fairly large sample size to break these out).
 

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30.8 AVG MPG here from Salt Lake City to Portland

I have the Terrain SLE-2 (FWD with 4 cyc) I averaged 30.8 MPG with 1000 miles on my Terrain this past Holiday trip.

Granted, Oregon has a 65 mph law and the most I went was 69 mph.

I found that using PREMIUM UNLEADED really made a difference for me. Mid grade and regular caused MPG to go down drastically.

I also found that at Sea Level (Portland, Oregon) I saw a better MPG than at altitude (4500 ft) ASL in Salt Lake City (same grade of gas used).

So, the 'estimates as advertised' are really accurate in my case.

Marc
KA7SLC
Portland, Oregon
 

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Hey Marc..OFF TOPIC..My daughter..son-in-law and grandson live in Hillsboro Oregon....
 

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AWD V-6 with 19" upgraded wheels averaging 20.6mpg so far.
 

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PDX to SLC I was getting over 30 MPG

Of course, that was average and after I quit messing with the fuel computer and stopped resetting it, I saw close to the 30 mark all the way. City driving, I'm getting around 22 mpg. On this trip from Portland to Salt Lake, weather was bad, so I was probably averaging under 65, which makes a huge differance. Also, using Premium Unleaded really worked for my Terrain.

ME: Terrain, FWD, V4
 

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GMC Terrain 4 cylinder, AWD SLT2 with 1000 miles on it, in ECO mode 100% of the time.

Averaging about 24MPG with 40% highway 60% back roads. Took a 500 mile trip from MA to NH and back the first week we had the car, average speed was around 65 and we got 27 MPG. In general I have found the sweet spot for speed and best mileage is between 45-65 MPH. Once you go over 65 the mileage start to go way down. If you are driving 80MPH you will get about 22 MPG.
 

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From every post I've read, the mileage only gets better when the engine is broken in. Most folks seem to notive improving mileage with each new tankful. 27mpg ain't bad for a start!
 

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Well I'm on my second tank of gas with my new terrain. I have the 4cyl, AWD SLE-2. When I topped up the tank that I was given from the dealer and worked out the mileage I had 26.5 MPG and that is with 75% hiway 25% town driving. So far I'm very impressed as it can only get better.

One thing to note when they state MPG figures on your car, they do not tell you that it is tested at 50 MPH for you guys in the US, and at 80 km/hr in Canada. My average in town speed is 60 km/hr and my average hiway speed is 110 km/hr.

Like I said for a dealer filled tank I'm very happy with my mileage.
 

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I'd be interested to have some of you guys do some actual calculations at the pump to see how accurate the vehicle's reading is. In my experience, vehicle mileage measurements are not terribly accurate. For me personally, I always do a quick manual calculation at the pump, to get a truly accurate reading.

All you have to do is make sure to fill the vehicle to the same level consistently (I usually fill vehicles to the absolute max until there's fuel resting at the top of the intake nozzle). Then,

a) For MPG - Divide the number of miles you drove on that tank by the gallons you put in (MPG).
b) For L/100KM - Divide the number of KMs you drove by 100 (eg. 575KM / 100 = 5.75). Divide the amount of fuel you put in your car by the number from the first step (eg. 45L / 5.75 = 9). The resulting number is your L/100KM mileage (in this example, 7.8L/100KM).

P.S. Michael Karesh / TrueDelta - Please cool it with the e-mails. I've got 8 e-mails from you in 15 days reminding my to fill out something-or-other. I got your point in the first couple e-mails. The other 7 weren't necessary.
 

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I check my fuel consumption with every fill. My DIC readout is consistently reading 10% better fuel economy than I actually achieve. This is true for straight freeway driving or straight city driving.
 

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*All things petroleum: First Oil Change

I just got my first oil change today @ 3000 miles. All the mechanics were over checking out the Terrain, it was really fun.
Has anyone noticed people walking all the way around your Terrain when parked at the store? It has happened many times to me.

Back to the oil change: I noticed the oil filter is actually on top (side) of the engine, not down below anymore. Very interesting.
I thought I might be getting the first oil change done a little too early, but they pulled the filter and it was really bad.

I paid extra and had the Synthetic Mobile 1 oil added in this time, s we'll see how it works out.

Just an update on my mileage: I have been doing all City driving, and I noticed that if I don't baby my Terrain like a little old lady, I'm barely stretching it to about 21-22 mpg. If I drive normal and leave the stop light along with all the other lead foot drivers, it goes down around 15 mpg. So it's all about babying your starts and stops. It takes a herculean effort to maintain a good city mpg. But compared to my Ford Escape, it's larger, bigger, and nicer and gives me about 5 to 10 mpg more than my Escape ever thought about giving me.

Also, to those that have family, friends or used to live here in Oregon, all I can report is that I love it here!
 

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As I posted on another thread, I'm going to install a Scan Gauge II on the new Terrain. It has a calibration feature for fillups that makes MPG calculations extraordinarily accurate. Once I get a few miles on this new puppy, I'll post the results. Hooks up the the OBD and gives readout on just about any engine data so even an enthusiast like me can be happy. I'm really not excited about "idiot lights" these days and even tho the DIC gives a lot of info, it's not enough.
 
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