Welcome to the North American Subaru Impreza Owners Club Monday January 26, 2015
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Subaru Models > Impreza Forum

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 06-17-2008, 12:15 PM   #101
IvanImpreza08
Scooby Newbie
 
Member#: 182549
Join Date: Jun 2008
Default

getting about 25 mpg in mostly city in a 2008 2.5i
* Registered users of the site do not see these ads.
IvanImpreza08 is offline   Reply With Quote
Old 06-17-2008, 02:22 PM   #102
Magic Marker
Scooby Specialist
 
Member#: 181568
Join Date: Jun 2008
Chapter/Region: Tri-State
Location: Northern New Jersey
Vehicle:
2011 3.6R Legacy LTD
Steel Silver Metallic

Default

2008 OBS automatic. 900 miles and all local driving w/ 87 octane ~ 24-25mpg's.
Magic Marker is offline   Reply With Quote
Old 06-25-2008, 03:50 PM   #103
adplotkin
Scooby Newbie
 
Member#: 183211
Join Date: Jun 2008
Chapter/Region: MAIC
Location: West Chester, PA
Vehicle:
2008 Impreza 5 Door

Default

08 Impreza 5 Door - Auto
I am getting 21 right now.
adplotkin is offline   Reply With Quote
Old 06-25-2008, 04:48 PM   #104
kidrobot
Scooby Newbie
 
Member#: 183217
Join Date: Jun 2008
Chapter/Region: SCIC
Location: so cal
Vehicle:
08 2.5i impreza 5d
dk grey

Default

same here - 08 2.5i hatch = getting mostly 21 mpg
kidrobot is offline   Reply With Quote
Old 06-26-2008, 11:27 AM   #105
Don Juan
Scooby Newbie
 
Member#: 183276
Join Date: Jun 2008
Chapter/Region: South East
Location: Atlanta
Vehicle:
04 STI
Blue

Default

04 STI on a 13 gal fill 175 mi W/a heavy foot.
Don Juan is offline   Reply With Quote
Old 06-27-2008, 03:07 AM   #106
rose.man
Scooby Newbie
 
Member#: 174604
Join Date: Mar 2008
Chapter/Region: AKIC
Location: Fort Wainwright, Alaska
Vehicle:
2008 Impreza 2.5i
Dark Gray

Default

does anyone know how they get the sticker average mpg for highway? cause i rest my mpg computer on the highway cruising at 60 mph in 5th gear and got an average of 39.9, thats way more than i expected for highway driving.
rose.man is offline   Reply With Quote
Old 06-27-2008, 10:04 AM   #107
Magic Marker
Scooby Specialist
 
Member#: 181568
Join Date: Jun 2008
Chapter/Region: Tri-State
Location: Northern New Jersey
Vehicle:
2011 3.6R Legacy LTD
Steel Silver Metallic

Default

Quote:
Originally Posted by rose.man View Post
does anyone know how they get the sticker average mpg for highway? cause i rest my mpg computer on the highway cruising at 60 mph in 5th gear and got an average of 39.9, thats way more than i expected for highway driving.
I think we are all relying on the computer too much for MPG's. I'll try it out the old fashioned way the next time I gas up. I'll keep you guys posted.
Magic Marker is offline   Reply With Quote
Old 06-27-2008, 03:07 PM   #108
nobletea
Scooby Newbie
 
Member#: 169623
Join Date: Jan 2008
Location: MidAtlantic
Vehicle:
2008 2.5i 5d 100k+
Dark Grey Metallic

Default

Quote:
Originally Posted by rose.man View Post
does anyone know how they get the sticker average mpg for highway? cause i rest my mpg computer on the highway cruising at 60 mph in 5th gear and got an average of 39.9, thats way more than i expected for highway driving.
I don't know exactly how the estimates are calculated. There may be information on www.fueleconomy.gov What I can tell you is that it is only representative of the highway AVERAGE, meaning all drivers, all conditions, over time, etc. You can obviously get much higher mileage in optimum conditions and driver behavior.

Quote:
Originally Posted by Magic Marker View Post
I think we are all relying on the computer too much for MPG's. I'll try it out the old fashioned way the next time I gas up. I'll keep you guys posted.
Let us know. I've checked mine and it was accurate.
nobletea is offline   Reply With Quote
Old 06-27-2008, 05:14 PM   #109
rose.man
Scooby Newbie
 
Member#: 174604
Join Date: Mar 2008
Chapter/Region: AKIC
Location: Fort Wainwright, Alaska
Vehicle:
2008 Impreza 2.5i
Dark Gray

Default

Quote:
Originally Posted by nobletea View Post
I don't know exactly how the estimates are calculated. There may be information on www.fueleconomy.gov What I can tell you is that it is only representative of the highway AVERAGE, meaning all drivers, all conditions, over time, etc. You can obviously get much higher mileage in optimum conditions and driver behavior.



Let us know. I've checked mine and it was accurate.
hey thanks for the link. they really do use all conditions for these tests here is a link for more specific test criteria. www.fueleconomy.gov/feg/fe_test_schedules.shtml
rose.man is offline   Reply With Quote
Old 06-28-2008, 04:25 AM   #110
goalie_pilot
Scooby Newbie
 
Member#: 175436
Join Date: Mar 2008
Vehicle:
2008 2.5i 5-Door
Newport Blue

Default

Quote:
Originally Posted by kidrobot View Post
same here - 08 2.5i hatch = getting mostly 21 mpg
Me too, manual though. Where I live right now it's all city driving which doesn't help anything. I try to be gentle with my right foot to save gas (and my wallet) but I just can't resist planting it firmly into the floor every once and a while. I just can't help it !

Where I live for most of the year (college) I do all highway driving and I've been averaging 30 doing that.
goalie_pilot is offline   Reply With Quote
Old 06-30-2008, 11:29 PM   #111
nobletea
Scooby Newbie
 
Member#: 169623
Join Date: Jan 2008
Location: MidAtlantic
Vehicle:
2008 2.5i 5d 100k+
Dark Grey Metallic

Default

Alright, interesting thing happened today.

So, I drive to work, drive home, head out to my game, and come home. Normal, except that on my way home tonight I noticed that my overall avg mpg is now magically 29.1--- when it has been 27.0 or 27.3 steady for the last 5 months.

Unfortunately I didn't notice precisely when this change took place. I don't think it was the morning. I think it was home from work or tonight sometime.

Okay, so what's different? Well, I got Shell gas today after work, which is only a little odd, but I don't pick, I just take whatever is convenient when I need it.

I drove the auto in manual mode almost the entire day, which is a little unusual. Just was in the mood.

I used the AC on the highway, which is normal, but I set the "cool" lever pretty close to the middle cause it wasn't hot today, just need to get out the humidity.

Still, I can't see how it's mathematically possible to change about 14k miles of avg mpg's in about 100 miles of driving today.

I think my comp barfed it. Thoughts?

I'll try to measure out the rest of the tank manually and see what I get.

UPDATE: Just realized that about the same time this happened, by ODO flipped to 19k miles exactly. Programmed to reset or something maybe?

Last edited by nobletea; 07-01-2008 at 10:17 AM.
nobletea is offline   Reply With Quote
Old 07-10-2008, 01:13 AM   #112
c-four
Scooby Newbie
 
Member#: 184222
Join Date: Jul 2008
Default

10.8 in the city
8.2 on the highway...

sorry don't know what those are in mpg.
c-four is offline   Reply With Quote
Old 07-10-2008, 12:51 PM   #113
efaroh
Scooby Specialist
 
Member#: 166947
Join Date: Dec 2007
Chapter/Region: SCIC
Location: OC
Vehicle:
2006 WRX Sedan
Crystal Gray Metallic

Default

I track my mileage the old fashioned way resetting the trip meter at every fill up. For the past three fill ups, i've gotten 24.5 mpg consistently. That's for what I call driving normally: avoiding boost, some ac, rare if not any wot, while keeping up with traffic at 75-80mph pace.

For one full tank, I never drove over the speed limit, keeping speed at 60-65. All else equal, I was able to achieve 26 mpg. I decided to ditch the speed limit to go with the flow of traffic. It's too excrutiating to see semi's passing me up!
efaroh is offline   Reply With Quote
Old 07-10-2008, 09:59 PM   #114
deltableh
Scooby Specialist
 
Member#: 167461
Join Date: Dec 2007
Location: Connecticut
Vehicle:
2008 MINI Cooper S
Pepper White

Default

Picture for proof of my road trip mileage. This was at the end of the trip:

deltableh is offline   Reply With Quote
Old 07-10-2008, 10:11 PM   #115
kidrobot
Scooby Newbie
 
Member#: 183217
Join Date: Jun 2008
Chapter/Region: SCIC
Location: so cal
Vehicle:
08 2.5i impreza 5d
dk grey

Default

so how do you all get such great MPG? Its a mystery to me! I get better if i drive the freeway but my commute is all side streets. Dang....
kidrobot is offline   Reply With Quote
Old 07-11-2008, 09:55 AM   #116
nobletea
Scooby Newbie
 
Member#: 169623
Join Date: Jan 2008
Location: MidAtlantic
Vehicle:
2008 2.5i 5d 100k+
Dark Grey Metallic

Default

Update to my sudden increase in MPG. (27.3 to 29.4 overnight).

Still have no idea how it happened or how the gauge is getting it. I checked it myself and the gauge appears to be correct measured by the gas put in.

I still don't understand how a couple hundred miles can change many thousands of miles of measurement overnight.

Only news is that it seems to have settled again about 28.2 for some reason.

Oh well.
nobletea is offline   Reply With Quote
Old 07-11-2008, 01:37 PM   #117
Jack_Cracker
Scooby Newbie
 
Member#: 182450
Join Date: Jun 2008
Default

04 WRX Wagon 5spd
Weekender road trip a couple weeks ago.
Canoe on the roof and about 600lbs of gear in the back.
24.7 mostly hwy + about 135mi of gnarly gravel.
Jack_Cracker is offline   Reply With Quote
Old 07-11-2008, 10:53 PM   #118
basemodelsadface
Scooby Newbie
 
Member#: 184348
Join Date: Jul 2008
Vehicle:
2008 2.5i hatch
NBP

Default

I have 1020 miles on my 08 hatch base model, 21.2 MPG.
basemodelsadface is offline   Reply With Quote
Old 07-12-2008, 12:32 AM   #119
gen_pete
Scooby Newbie
 
Member#: 180948
Join Date: May 2008
Location: Denver
Vehicle:
2008 Impreza 2.5i
Obsidian Black Pearl

Default

25+ in the city, on the highway 31.8 is my new peak.
gen_pete is offline   Reply With Quote
Old 07-15-2008, 11:02 PM   #120
RobM
Scooby Newbie
 
Member#: 177056
Join Date: Apr 2008
Location: Alberta, Canada
Vehicle:
2015 WRX - CVT
2009 Forester XT

Default

Got 39 MPG on a 400 mile trip, at ~75 MPH, with AC on the whole time. No idea why some of you get such crappy mileage.
RobM is offline   Reply With Quote
Old 07-20-2008, 01:12 AM   #121
02outbacksport
Scooby Newbie
 
Member#: 184950
Join Date: Jul 2008
Default good mileage

I get about 650-700kms on a tank on a 02 impreza outback sport. I drive 65% highway and 35% city. Stick to the speed limit most of the time and you can get this easily.

cya
02outbacksport is offline   Reply With Quote
Old 07-21-2008, 02:47 AM   #122
dyno
Scooby Newbie
 
Member#: 164582
Join Date: Nov 2007
Default

Quote:
Originally Posted by RobM View Post
Got 39 MPG on a 400 mile trip, at ~75 MPH, with AC on the whole time. No idea why some of you get such crappy mileage.

Because some of us live in the city with traffic lights and hills and stuff Mr Flatlander.
dyno is offline   Reply With Quote
Old 07-21-2008, 04:20 AM   #123
goalie_pilot
Scooby Newbie
 
Member#: 175436
Join Date: Mar 2008
Vehicle:
2008 2.5i 5-Door
Newport Blue

Default

Quote:
Originally Posted by RobM View Post
Got 39 MPG on a 400 mile trip, at ~75 MPH, with AC on the whole time. No idea why some of you get such crappy mileage.
What car do you have? I just averaged 32mpg on my 800 mile trip from CA to AZ, averaging a speed of 75mph.
goalie_pilot is offline   Reply With Quote
Old 07-22-2008, 11:09 AM   #124
RobM
Scooby Newbie
 
Member#: 177056
Join Date: Apr 2008
Location: Alberta, Canada
Vehicle:
2015 WRX - CVT
2009 Forester XT

Default

I believe the difference is in the "type" of gallon used. Some of the L/100 km --> MPG use an imperial gallon, and some use a US gallon.

It would seem the conversion chart I was using was for an imperial gallon.

7.2 L/100 km = 39 MPG (imperial)
7.2 L/100 km = 33 MPG (US)

So presuming your MPG is based on a US gallon, we scored roughly the same mileage.

I've got a 2.5i hatch.
RobM is offline   Reply With Quote
Old 07-22-2008, 11:24 AM   #125
alex76
Scooby Newbie
 
Member#: 185060
Join Date: Jul 2008
Location: Gilford, NH
Vehicle:
1997 Impreza L Wagon
Green

Default 02 WRX Wagon

24-28mpg mostly highway higher numbers in the summer. 5spd. 180k miles. 93 octane. (regular doesn't ping but lose a few hp and at least one mpg so it's not worth the money difference) regular oil. tires at 33psi. i usually run around 75mph and that gives me 25-26mpg. if i slow down i can reach 27 or 28.
alex76 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
FS:Saratoga NY: '96 Impreza GF8 L with '02 WRX swap byroll01 NESIC Private Classifieds 2 06-04-2010 01:52 PM
2009 Impreza Real-Time MPG display disabled for USA - can this be re-enabled? 2009OutbackSport Electrical & Lighting 3 03-11-2009 03:56 PM
FS: '93 Impreza L AWD Wagon, AT, 1.8, 30+mpg outback2.5HO NWIC Private Classifieds 7 12-05-2008 07:42 PM
Improving MPG on 2008 Impreza yarsec Normally Aspirated Powertrain 42 05-09-2008 10:35 PM
99 Impreza 2.2 only 20 MPG help 99Subprez Normally Aspirated Powertrain 19 04-22-2008 02:49 PM


All times are GMT -4. The time now is 06:50 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2015 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.