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GMC Acadia Real World MPG

63 messages,  Last post on Nov 23, 2009 at 8:41 AM

You are in the GMC Acadia Forum. Your Hosts are steve_ & tidester

What is this discussion about? GMC Acadia, Fuel System, SUV


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#20 of 63
MPG by bopper1
Jul 07, 2007 (9:25 am)
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I have the Acadia SL 2 AWD.
Driving 75 to 83 mph, 22 mpg.
Drivng around 60-65, I get 24 mpg. Watch tach and try to keep it under 2000 rpm's. 6th gear (over drive) kicks in around 58-60 mph.
When driving over mtn. passes manually put the transmission in 3rd. Keeping tach under 3,000 rpm's I get 22 mpg. This 3rd gear is great for going up and down steep hills.
Just around town, doing errans, I get 18 mpg.
#21 of 63
Recent highway MPG by sboyd1
Jul 31, 2007 (1:30 pm)
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On Sunday I drove about 260 miles round-trip to drop off my son w/ his grandparents. On the trip out there I did everything I could within reason to maximize my fuel economy according to the DIC. This included drafting behind larger vehicles and a speed generously below the allowable limit (60 in a 70).
 
On the way back I just set the cruise control at 70 and let it do it's thing.
 
All miles for both legs of the trip were highway with light traffic.
 
Results:
Leg A - Avg. Sp.: 60.7, Avg. Eco.: 28.1
Leg B - Avg. Sp.: 71.3, Avg. Eco.: 24.7
 
While using cruise control, it seemed that most overpasses would cause the transmission to down shift to maintain speed. I avoided this by using the Set + / - buttons. Approaching an overpass I would kick the speed up about 2 MPH. While crossing the overpass, I would decrease the speed by 1 or 2 MPH as the grade increased. This kept the transmission in 6th.
#22 of 63
MPG by donl1
Jul 31, 2007 (7:35 pm)
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I've got an AWD Acadia with almost 9K on it and I don't remember the last time I got 20 mpg. Wished I'd have got one of those magic ones that get 25.
#23 of 63
BETTER MPG IN ACADIA 2008? by jroseh
Jul 31, 2007 (9:15 pm)
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I HAVE BEEN LOOKING FOR A CROSSOVER FOR OVER A YEAR NOW. THIS SEEMED TO BE THE PERFECT VEHICLE, AS I HAVE A 2002 SUBURBAN THAT DRINKS GAS!! I AM REALLY DISCOURAGED THOUGH AS I HAVE READ ALL THE REVIEWS AND THE FORUM ON MPG. HAS ANYONE NOTICED ANY BETTER GAS MILEAGE ON THE 08'S? OR HEARD THAT THEY MIGHT BE TRYING TO IMPROVE THAT ISSUE? THANKYOU FOR READING!! DON'T KNOW WHAT TO DO?
#24 of 63
Re: BETTER MPG IN ACADIA 2008? [jroseh] by bdyment
Aug 01, 2007 (4:19 am)
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Replying to: jroseh (Jul 31, 2007 9:15 pm)

Until GM reduces the weight of the beast by 500lbs. gas mileage will not be the Acadia's strong point.
#25 of 63
Re: BETTER MPG IN ACADIA 2008? [bdyment] by wlbrown9
Aug 02, 2007 (11:15 am)
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Replying to: bdyment (Aug 01, 2007 4:19 am)

I don't think 500 pounds would make that big a difference in gas mileage, more in stop and go, less in hwy cruising. Compared to previous gen. GM SUVs I would guess the 6 speed tranny and some of that would make more difference than just cutting some weight.
#26 of 63
Re: BETTER MPG IN ACADIA 2008? [wlbrown9] by steve_ HOST
Aug 02, 2007 (11:27 am)
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Replying to: wlbrown9 (Aug 02, 2007 11:15 am)

An extra 100 pounds in your vehicle could reduce your MPG by up to 2%.
 
fueleconomy.gov
#27 of 63
Re: BETTER MPG IN ACADIA 2008? [steve_] by wlbrown9
Aug 03, 2007 (8:48 am)
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Replying to: steve_ (Aug 02, 2007 11:27 am)

Okay...up to 2%...read the complete statement...Up to means from 0 to 2%...larger vehicle, several hundred pounds. Maybe 4% reduction. Possible reduction of about 1 MPG based on EPA estimate of 25 MPG hwy.
 
"Avoid keeping unnecessary items in your vehicle, especially heavy ones. An extra 100 pounds in your vehicle could reduce your MPG by up to 2%. The reduction is based on the percentage of extra weight relative to the vehicle's weight and affects smaller vehicles more than larger ones."
 
Now look at the possible saving of driving style, up to 33% could be as much as 8 MPG. Now we see why some folks get better mileage that others.
 
"Aggressive driving (speeding, rapid acceleration and braking) wastes gas. It can lower your gas mileage by 33 percent at highway speeds and by 5 percent around town. "
#28 of 63
Re: BETTER MPG IN ACADIA 2008? [wlbrown9] by steve_ HOST
Aug 03, 2007 (9:10 am)
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Replying to: wlbrown9 (Aug 03, 2007 8:48 am)

lol, like all the aftermarket gizmos that say "up to ten percent better mileage and horsepower."
 
Point taken, but 500 pounds is a pretty good chunk any way you slice it.
#29 of 63
Re: MPG [donl1] by morty66
Sep 02, 2007 (3:10 pm)
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Replying to: donl1 (Jul 31, 2007 7:35 pm)

Friend of mine has ordered a 2007 FWD Acadia. Should get this month. He says a friend of their's has a 2007 AWD Acadia which gets 24mpg in a mixture of city and highway driving. He thinks that he might get 25 mpg because he has FWD instead of AWD. I'm stunned to hear such great mpg figures from a big SUV.

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