Welcome to the North American Subaru Impreza Owners Club Wednesday September 17, 2014
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 General > Newbies & FAQs

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 01-25-2011, 11:17 PM   #1
stuffedcabbage
Scooby Newbie
 
Member#: 271672
Join Date: Jan 2011
Location: Boston
Vehicle:
2006 Imreza wagon
RED

Default New Impreza owner, low mpg?

I just bought a 06 Impreza wagon about 3 weeks ago. Its awesome, and I love it. I am only getting 21-22 mpg. I have filled it about five times, and that has been the average every time. Its a manual and it has snow tires. My question is, is that normal or should I be concerned?
* Registered users of the site do not see these ads.
stuffedcabbage is offline   Reply With Quote
Old 01-25-2011, 11:37 PM   #2
neverrain
Scooby Newbie
 
Member#: 268460
Join Date: Dec 2010
Chapter/Region: SCIC
Location: Los Angeles (818)
Vehicle:
2011 WRX Limited
World Rally Blue

Default

Damn.. I would love to get 21-22 in my car.

According to this site - http://www.fueleconomy.gov/feg/noframes/21772.shtml - (Google search took all of 5 seconds), you are seeing pretty good economy.
neverrain is offline   Reply With Quote
Old 01-26-2011, 12:50 AM   #3
nevin95 LSi
Scooby Newbie
 
Member#: 219571
Join Date: Aug 2009
Location: kalona, IOWA!
Vehicle:
'02 wrx wagon 274k+
'95 SVX ebony mica

Default

There are a few easy steps you can take to make sure you're getting the best mileage that you can out of your car.

Check the air pressure in your tires. Sometimes people run less air in snow tires when they can run the same amount as before just the same. Typically, a tire for our size of vehicle will take up to 44psi. I work at a tire shop, and I see under-inflated tires all the time. Sure, you don't NEED to run them that high, but the only thing you'll sacrifice is a bit of ride quality. And the only reason you'd know NOW is because I just mentioned that! Honestly, if I aired up 95% of the tires on this forum, people would not know! Airing them up makes less rolling resistance, which means your car will need less power to move!

So, that's the first thing. Check the air in your tires.

The second thing is more general and covers more areas, but it all goes together. Engine maintenance! Give your car a tuneup! Spark plugs, check your air filter, replace your fuel filter, check all of your vacuum lines to make sure none are cracked, check your PCV valve(s) to see they're not clogged. Just give it a general "once over."

Next, check all of your fluid levels, and possibly consider swapping to synthetic lubricants if you're not already running them. (ATF, gearoil, etc... as applicable) They can typically lower the friction of rotating parts, and therefore use less energy to turn, which means you need less energy to move!

And last but certainly not least is "tighten the nut behind the wheel." A common expression which basically just means that you should double check your own skills, habits, etc... and if you can improve your driving technique, then do! Why keep your foot on the gas if you're coming up to a stoplight in 1/4 mile? Do you need to be the first off the line at every light? Simple questions to ask yourself which could help you out.


And please don't think that I'm scolding you or anything. I have no idea how you drive, how good of maintenance your car has seen, or anything like that! These are honestly some things that some people will never think of, and can be of some real benefit!

If even one of these ideas was helpful to you, then my response was a success!

p.s. On the highway, I can get 30mpg with my 140k mile 3500 lb. automatic transmission equipped '95 SVX. Alot of it really IS how you drive the car.

Last edited by nevin95 LSi; 01-26-2011 at 12:55 AM.
nevin95 LSi is offline   Reply With Quote
Old 01-26-2011, 09:30 AM   #4
thewritingwriter
Scooby Newbie
 
Member#: 243214
Join Date: Apr 2010
Chapter/Region: Tri-State
Location: Kirkwood
Vehicle:
2014 WRX Premium
WRB

Default

HAHA must be nice to get 20+ MPGs, my 06 WRX is lucky to get around 17-18 around town. But that is better than my old Dodge Ram which averaged about 6-7 (on the highway).
thewritingwriter is offline   Reply With Quote
Old 01-26-2011, 09:35 AM   #5
4ST-AIR
Scooby Specialist
 
Member#: 148681
Join Date: May 2007
Chapter/Region: MWSOC
Location: WI
Vehicle:
TBD Looking for STI
Back in the Game!

Default

There is nothing wrong with that mileage in winter from the winter blended gas.
4ST-AIR is offline   Reply With Quote
Old 01-26-2011, 11:57 AM   #6
gregoriousd
Scooby Newbie
 
Member#: 269826
Join Date: Jan 2011
Chapter/Region: Tri-State
Location: Hoboken, NJ
Vehicle:
2006 Impreza Wagon
Regal Blue

Default

Agreed- 20ish mpg isn't so bad. What edmunds says when you're researching vs the real world is always different. Where do you reside Mr. Cabbage? Snow tires can definitely drag your efficiency down. Run down your street with your winter boots on, that's how your car feels. Keep on the maintenance though, treat your car right and it'll return the favor.
gregoriousd is offline   Reply With Quote
Old 01-26-2011, 01:22 PM   #7
riksen13
Scooby Newbie
 
Member#: 270965
Join Date: Jan 2011
Chapter/Region: MWSOC
Location: Wisco
Vehicle:
2007 Impreza
Black

Default

Quote:
Originally Posted by nevin95 LSi View Post
Typically, a tire for our size of vehicle will take up to 44psi. I work at a tire shop, and I see under-inflated tires all the time. Sure, you don't NEED to run them that high, but the only thing you'll sacrifice is a bit of ride quality.
Um... What? No. Just no. You work at a tire shop and you are giving out this information? Where's the facepalm button?

Lets take a look at what happens when you add more air than recommended to your tire. The pressure recommended is set in such a manner that throughout the operating range you will have maximum tread contact with the road when driving this. Inflating the tire to its max PSI will cause the center of the tire to bulge farther than the edges, thus wearing your tires significantly faster AND throwing in the added "benefit" of reduced traction.

This is an awful idea. Underinflated tires are terrible as well, but keep it at the factory recommended pressure.
riksen13 is offline   Reply With Quote
Old 01-26-2011, 02:01 PM   #8
NeoUtahImpreza
Scooby Newbie
 
Member#: 245187
Join Date: Apr 2010
Chapter/Region: RMIC
Location: Farmington, UT
Vehicle:
2006 Impreza Wagon
CGM

Default

I have a 06 Impreza Wagon as well, been averaging 26-28 mpg...used to get around 30 with a 24 mile free way commute. Now its cut in half. I have over 33K miles.
NeoUtahImpreza is offline   Reply With Quote
Old 01-26-2011, 02:01 PM   #9
Entaille
Scooby Specialist
 
Member#: 217875
Join Date: Jul 2009
Chapter/Region: NWIC
Location: Everett
Vehicle:
2008 STi
DGM

Default

max pressure is a terrible idea. not safe at all.
Entaille is offline   Reply With Quote
Old 01-26-2011, 08:30 PM   #10
Americanrebel21
Scooby Newbie
 
Member#: 166087
Join Date: Dec 2007
Chapter/Region: Tri-State
Location: Pennsylvania
Vehicle:
2008 WRX SPT Tuned
Spark Silver

Default

Do Not over inflate your tires as that guy recommended. Hes very wrong and probably works at a tire shop that does shabby work as most do. Go by what your vehicle recommends for tire pressure.
Americanrebel21 is offline   Reply With Quote
Old 01-26-2011, 08:42 PM   #11
stuffedcabbage
Scooby Newbie
 
Member#: 271672
Join Date: Jan 2011
Location: Boston
Vehicle:
2006 Imreza wagon
RED

Default

Thanks for all the feedback. I live in Boston, but I do mostly highway driving. Its cold as hell and there is tons of snow so I am sure that affects the mpg. I posted just to see what other people with the same car were getting. Its not a wrx, its just a plain ol impreza wagon.
stuffedcabbage is offline   Reply With Quote
Old 01-26-2011, 11:15 PM   #12
riksen13
Scooby Newbie
 
Member#: 270965
Join Date: Jan 2011
Chapter/Region: MWSOC
Location: Wisco
Vehicle:
2007 Impreza
Black

Default

My 07 Impreza 5 speed gets about the same, I wouldn't worry about it.
riksen13 is offline   Reply With Quote
Old 01-27-2011, 12:14 AM   #13
nevin95 LSi
Scooby Newbie
 
Member#: 219571
Join Date: Aug 2009
Location: kalona, IOWA!
Vehicle:
'02 wrx wagon 274k+
'95 SVX ebony mica

Default

Regardless of what the car is reported to get, that still just seems low.

For such a small car with a relatively frugal engine, it just seems like it would be better!
nevin95 LSi is offline   Reply With Quote
Old 01-27-2011, 12:19 AM   #14
nevin95 LSi
Scooby Newbie
 
Member#: 219571
Join Date: Aug 2009
Location: kalona, IOWA!
Vehicle:
'02 wrx wagon 274k+
'95 SVX ebony mica

Default

Quote:
Originally Posted by Americanrebel21 View Post
Do Not over inflate your tires as that guy recommended. Hes very wrong and probably works at a tire shop that does shabby work as most do. Go by what your vehicle recommends for tire pressure.
Wow, thanks for judging me. That makes me feel awesome.

And I take pride in taking care of other's vehicles because they do not know how to themselves. Being trusted by someone else to give my opinions on matters that I am PAID to know about is not something I take lightly. People's personal safety very literally depends on the work I do, and I do not give out advice that I would not take myself. So please, don't jump all over me.
nevin95 LSi is offline   Reply With Quote
Old 01-27-2011, 06:08 AM   #15
_nut_
Scooby Newbie
 
Member#: 259980
Join Date: Oct 2010
Chapter/Region: AKIC
Location: Anchorage
Vehicle:
2011 WRX Ltd Sedan
WRB

Default

That sounds pretty bad. Do you drive balls to the wall all the time? I generally average 23 hw 19 city though the last 3 weeks I'm getting 27 ( ticket / court supervision *not speeding*.... so no boost). The low 20 range still had a lot if spirited driving. Are you using 93 octane?
_nut_ is offline   Reply With Quote
Old 01-27-2011, 06:12 AM   #16
_nut_
Scooby Newbie
 
Member#: 259980
Join Date: Oct 2010
Chapter/Region: AKIC
Location: Anchorage
Vehicle:
2011 WRX Ltd Sedan
WRB

Default

I should also add that before this october... I had an 08 OBS and got mid 20s city and around 30 highway. Turbo = more hp = less mpg. Your non turbo should be higher.
_nut_ is offline   Reply With Quote
Old 01-27-2011, 08:10 AM   #17
WRXSteye20008
Scooby Specialist
 
Member#: 175565
Join Date: Mar 2008
Chapter/Region: MAIC
Location: Lancaster, PA
Vehicle:
2014 Sport Premium
Past: 351awhp Sti

Default

20mpg ha! I wish I could get that coasting down a hill in neutral! I average around 15-18mpg
WRXSteye20008 is offline   Reply With Quote
Old 01-27-2011, 09:12 AM   #18
BTomp6754
Scooby Newbie
 
Member#: 270757
Join Date: Jan 2011
Chapter/Region: NESIC
Location: Southern NH
Vehicle:
2012 WRX Premium
Satin White Pearl

Default

I am also getting around 21-22 per tank in southern NH. Most of my driving is highway from the seacost (portsmouth area) to manchester.

On a side note about the tires...
The crazy tire shop man isnt super far off, I agree 44 is def high however according to the chart in the owners manual 40psi is the adjusted cold weather temperature. I had mine at 32/33 but the damn TPMS light kept coming on due to the cold weather so i had to add more air...im currently around 36psi with no issues...
BTomp6754 is offline   Reply With Quote
Old 01-27-2011, 10:10 AM   #19
CarterMarkham
Scooby Newbie
 
Member#: 79085
Join Date: Jan 2005
Chapter/Region: NESIC
Location: Maine
Vehicle:
2011 Subaru WRX Lim
LRP

Default

I have winter tires on but I never checked the. Pressure when I put them on (no tpms in these wheels) I was sliding all over the place. I drove 1/4 of a mile to the gas station, set the digital gauge to 39psi and now it handles a lot better. (they were all at ~30psi before)
CarterMarkham is offline   Reply With Quote
Old 01-27-2011, 11:22 AM   #20
HAMPSTERW
Scooby Newbie
 
Member#: 167031
Join Date: Dec 2007
Chapter/Region: RMIC
Location: SALT LAKE, UTAH
Vehicle:
2005 STI
WHITE

Default Mileage

for your car 20-21 mpg ain't bad but it ain't great either, perhaps a tune up is in order. My kid has an 08' impreza 2.5i and he is knocking down 25-26 on the highway. Me, I would love to see 21 but alas a big turbo, extensive mods and a heavy foot limit me to around 17.
HAMPSTERW is offline   Reply With Quote
Old 01-27-2011, 11:35 AM   #21
Napalm3nema
Scooby Specialist
 
Member#: 263954
Join Date: Nov 2010
Location: Houston, TX
Vehicle:
2014 EVO Yes, EVO
Wicked White

Default

Quote:
Originally Posted by nevin95 LSi View Post
Wow, thanks for judging me. That makes me feel awesome.

And I take pride in taking care of other's vehicles because they do not know how to themselves. Being trusted by someone else to give my opinions on matters that I am PAID to know about is not something I take lightly. People's personal safety very literally depends on the work I do, and I do not give out advice that I would not take myself. So please, don't jump all over me.
If you are advising to over inflate tires past factory / tire recommended pressures, then you are not doing anyone any service, you are endangering them and costing them money because they will need to buy tires sooner.

Instead of getting all huffy and defensive, learn from your mistakes and move forward. Honestly from your suggestion it appears you know very little about how tires work, though you may know how to put them on a rim for someone.

My .02 cents
Napalm3nema is offline   Reply With Quote
Old 01-27-2011, 11:49 AM   #22
lowrider89
Scooby Specialist
 
Member#: 143022
Join Date: Mar 2007
Chapter/Region: RMIC
Location: ft collins, CO
Vehicle:
2005 modded S4

Default

my wrx got 17-18..... the boxer motor is not fantastic for gas mileage

you are getting way better mileage than you should be, and if you wanted a good gas mileage car you bought the wrong car
lowrider89 is offline   Reply With Quote
Old 01-27-2011, 02:06 PM   #23
Airplay355
Scooby Specialist
 
Member#: 213825
Join Date: Jun 2009
Chapter/Region: NESIC
Location: Southern Maine
Vehicle:
2011 WRX
SWP

Default

Change the way you drie. I get 23 in my 11 WRX and my mom has no problem getting 27 in her '08 Impreza. These are the averages across highway and city driving. 21 in a regular Impreza sounds low to me.
Airplay355 is offline   Reply With Quote
Old 01-27-2011, 09:33 PM   #24
toconn
Scooby Newbie
 
Member#: 166656
Join Date: Dec 2007
Chapter/Region: NESIC
Location: Connecticut / Massachusetts
Vehicle:
2002 WRX Wagon
Silver

Default

Regarding tire pressure: you guys throwing the stones need to do your research. Does a single one of you track your car? At the track, I run over 40psi. You know why? Because it increases steering response and stability and has a negligible affect on the contact patch size. Modern tires are stiff enough that an extra few PSI isn't going to cause the "bubble effect". And modern tires can also hand upwards of 50psi, running in the 40's isn't going to cause issues. You know what downsides there are to high tire pressure? Ride quality and a decreased ability to isolate road irregularities. And if you hit the nastiest of nasty potholes, you're a little more likely to get a flat. That's it.

This forum is full of immature brats who just look for the opportunity to jump down someone's throat and try to make them look like an idiot. The only thing is, most people don't know WTF they're talking about. Everyone bitching about high tire pressure falls into that category.
toconn is offline   Reply With Quote
Old 01-27-2011, 09:51 PM   #25
nevin95 LSi
Scooby Newbie
 
Member#: 219571
Join Date: Aug 2009
Location: kalona, IOWA!
Vehicle:
'02 wrx wagon 274k+
'95 SVX ebony mica

Default

Quote:
Originally Posted by toconn View Post
Regarding tire pressure: you guys throwing the stones need to do your research. Does a single one of you track your car? At the track, I run over 40psi. You know why? Because it increases steering response and stability and has a negligible affect on the contact patch size. Modern tires are stiff enough that an extra few PSI isn't going to cause the "bubble effect". And modern tires can also hand upwards of 50psi, running in the 40's isn't going to cause issues. You know what downsides there are to high tire pressure? Ride quality and a decreased ability to isolate road irregularities. And if you hit the nastiest of nasty potholes, you're a little more likely to get a flat. That's it.

This forum is full of immature brats who just look for the opportunity to jump down someone's throat and try to make them look like an idiot. The only thing is, most people don't know WTF they're talking about. Everyone bitching about high tire pressure falls into that category.
Thank you. *internet highfive*
nevin95 LSi 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
Brand New Impreza Owner Lygriek Southern California Impreza Club Forum -- SCIC 24 10-07-2005 12:04 AM
new impreza owner and new member smkm1023 Tri-State Area Forum 21 10-12-2003 03:11 AM
New Impreza Owner CyberLogic South West Impreza Club Forum -- SWIC 8 01-14-2001 01:55 AM
Proud New Impreza Owner slidewaysmike South West Impreza Club Forum -- SWIC 8 01-12-2001 12:15 AM
New Impreza owner Stef Canada Region Forum 2 10-10-2000 09:09 AM


All times are GMT -4. The time now is 07:43 PM.


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