Welcome to the North American Subaru Impreza Owners Club Tuesday March 19, 2024
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
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.







* As an Amazon Associate I earn from qualifying purchases. 
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 09-19-2012, 10:14 AM   #1876
Tjohns
Scooby Newbie
 
Member#: 314510
Join Date: Mar 2012
Chapter/Region: NESIC
Location: Maine
Vehicle:
2012 Impreza2.0i 5D
Red Pearl

Default

Just noticed today. On the SOA website, the Crosstrek is rated at 33 mpg highway which seems reasonable given the higher stance. Then I looked at Edmunds and both the 2012 and 2013 Imprezas are listed as getting 25/33 mpg. If you look at the full review that Edmunds did on 10/11/2011 they wrote "Getting the CVT improves those estimates to 27/36/30"

Seems that SOA is lowering the numbers.
* Registered users of the site do not see these ads.
Tjohns is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 09-19-2012, 10:21 AM   #1877
sgoldste01
Scooby Specialist
 
Member#: 322264
Join Date: Jun 2012
Chapter/Region: Tri-State
Location: Webster, NY
Vehicle:
2012 Impreza Sp 5sp
Obs Blk Prl/Drk Gray Mtl

Default

Quote:
Originally Posted by Tjohns View Post
Seems that SOA is lowering the numbers.
If that's true, then my guess is that the EPA changed something about their fuel economy test procedure. I would further guess that other manufacturers will need to lower their EPA estimates too.
sgoldste01 is offline   Reply With Quote
Old 09-19-2012, 10:37 AM   #1878
myrt1987
Scooby Specialist
 
Member#: 323103
Join Date: Jun 2012
Chapter/Region: MAIC
Location: Columbia MD
Vehicle:
2018 WRX
Pure der

Default

Is it 33 mpg for MT and 36 for CVT? They might say its 33 because it comes standard with MT.
myrt1987 is offline   Reply With Quote
Old 09-19-2012, 10:55 AM   #1879
ocellaris
Scooby Specialist
 
Member#: 302559
Join Date: Nov 2011
Default

The 2013 MPG numbers are up on fueleconomy.gov, they are the same as 2012.
ocellaris is offline   Reply With Quote
Old 09-19-2012, 11:56 AM   #1880
flyboy1100
Scooby Guru
 
Member#: 314216
Join Date: Mar 2012
Location: ND
Vehicle:
2012 2.0i Sport 5MT
DGM

Default

Quote:
Originally Posted by sgoldste01
I'm wondering if those of you who are able to achieve 40-something MPGs have found a source of gas that doesn't contain any ethanol?

All of the gas sources I've found so far contain 10% ethanol, and it's my understanding that ethanol contains less energy content than gasoline, so naturally my (and everyone's) MPGs suffer as a result.

(I'm sure the ethanol industry argues that the cost of my gas is also cheaper than gas without any ethanol, so I'm not at any disadvantage.)

The best MPGs I've gotten on a road trip is 37, so I'm curious if those of you getting 40+ are using gas without any ethanol.
0.05/gallon savings actually costs more in the end (at the pump, and subsidiaries)
flyboy1100 is offline   Reply With Quote
Old 09-19-2012, 05:40 PM   #1881
bobdole888
Scooby Newbie
 
Member#: 316658
Join Date: Apr 2012
Vehicle:
2012 Impreza limited
5dr silver

Default

Quote:
Originally Posted by sgoldste01 View Post
I'm wondering if those of you who are able to achieve 40-something MPGs have found a source of gas that doesn't contain any ethanol?

All of the gas sources I've found so far contain 10% ethanol, and it's my understanding that ethanol contains less energy content than gasoline, so naturally my (and everyone's) MPGs suffer as a result.

(I'm sure the ethanol industry argues that the cost of my gas is also cheaper than gas without any ethanol, so I'm not at any disadvantage.)

The best MPGs I've gotten on a road trip is 37, so I'm curious if those of you getting 40+ are using gas without any ethanol.
First off, I'm not one of the guys getting 40+ mpg. However, I do feel that gas could have a lot to do with getting better mpg.
For the last 3 tanks of gas, I've been getting ~8% better mpg. This is without any change in driving pattern or weather changes. The only change that I can attribute it to is that my last 3 tanks of gas were regular 87 gas from Rotten Robbie. Previous to this, I was using regular 87 gas from either Unocal 76, or Valero.
The increase in mpg was instantaneous. The mpg meter started showing ~2mpg higher results soon after I got the Rotten Robbie gas.
At some point I'll fill up with Unocal 76 gas again to see if my mpg would drop when that happens. Then I would know for sure that it was the gas that made the difference.
Our impreza is equipped with knock sensor, so if it detects knock, it will automatically retard timing and make the engine less efficient --less mpg.
I'm wondering if the people getting 40+ mpg are putting in 89, 91 gas.
Or maybe they are in states which do not mandate ethanol in gas.
Here in California, ethanol blend is required by law.
For sure ethanol blended gas will result in lower mpg then pure gas.

For the record, my last tank of gas gave me 32.1 mpg(dash), 30.2(calculated). Less than 50% of my drive is freeway.
I'm slightly over the EPA estimate of 30mpg mixed.

I want to try 89, 91 gas at some point also to see if I get any boost in mpg from that.

The other point is tire pressure. I'm running 40 psi to help reduce rolling resistance. I've had problems with running manufacturer's recommended tire pressure in the past. They always seem too low and I end up with tires that wear out on the outer edges, but ok in the center. Hopefully running 40 psi tire pressure will result in more even wear and better mpg.
I've seen in Prius forums that people are running 50 psi over there and are not having any issues with tire wear. They claim to get 0.25mpg for every psi added.
bobdole888 is offline   Reply With Quote
Old 09-19-2012, 06:05 PM   #1882
flyboy1100
Scooby Guru
 
Member#: 314216
Join Date: Mar 2012
Location: ND
Vehicle:
2012 2.0i Sport 5MT
DGM

Default

Quote:
Originally Posted by bobdole888

First off, I'm not one of the guys getting 40+ mpg. However, I do feel that gas could have a lot to do with getting better mpg.
For the last 3 tanks of gas, I've been getting ~8% better mpg. This is without any change in driving pattern or weather changes. The only change that I can attribute it to is that my last 3 tanks of gas were regular 87 gas from Rotten Robbie. Previous to this, I was using regular 87 gas from either Unocal 76, or Valero.
The increase in mpg was instantaneous. The mpg meter started showing ~2mpg higher results soon after I got the Rotten Robbie gas.
At some point I'll fill up with Unocal 76 gas again to see if my mpg would drop when that happens. Then I would know for sure that it was the gas that made the difference.
Our impreza is equipped with knock sensor, so if it detects knock, it will automatically retard timing and make the engine less efficient --less mpg.
I'm wondering if the people getting 40+ mpg are putting in 89, 91 gas.
Or maybe they are in states which do not mandate ethanol in gas.
Here in California, ethanol blend is required by law.
For sure ethanol blended gas will result in lower mpg then pure gas.

For the record, my last tank of gas gave me 32.1 mpg(dash), 30.2(calculated). Less than 50% of my drive is freeway.
I'm slightly over the EPA estimate of 30mpg mixed.

I want to try 89, 91 gas at some point also to see if I get any boost in mpg from that.

The other point is tire pressure. I'm running 40 psi to help reduce rolling resistance. I've had problems with running manufacturer's recommended tire pressure in the past. They always seem too low and I end up with tires that wear out on the outer edges, but ok in the center. Hopefully running 40 psi tire pressure will result in more even wear and better mpg.
I've seen in Prius forums that people are running 50 psi over there and are not having any issues with tire wear. They claim to get 0.25mpg for every psi added.
I tried 91, no real improvement, definitely not enough to offset cost.

I also tried higher tire pressure, no improvement and handling was worse. You can do what you wish though with your tires.

I do however get better mpg with real gas and not the crap with 10% ethanol. It doesn't to seem to be 10% better like previous cars, but still 1.5mpg and only cost an extra 0.60 per fill so definitely worth it
flyboy1100 is offline   Reply With Quote
Old 09-19-2012, 06:41 PM   #1883
jsteg
Scooby Specialist
 
Member#: 329271
Join Date: Aug 2012
Chapter/Region: South East
Location: Lady's Island, SC
Vehicle:
2012 Impreza Limited
Ice Silver Metallic

Default

Quote:
Originally Posted by flyboy1100 View Post
I tried 91, no real improvement, definitely not enough to offset cost.

I also tried higher tire pressure, no improvement and handling was worse. You can do what you wish though with your tires.

I do however get better mpg with real gas and not the crap with 10% ethanol. It doesn't to seem to be 10% better like previous cars, but still 1.5mpg and only cost an extra 0.60 per fill so definitely worth it
1.5mpg will only get you 21 miles farther (based on 14 gallons) for that extra 0.60.......so in a year (based on 15k) you'll have filled up 36 times gained of total of 714 miles for a total of 15,714, and at the cost of $21.60 (based on 30mpg combined). Considering that, I will stay focused on using quality BRAND fuels, rather than ethanol free.

714 miles spread out over a year isn't enough for me to go out of my way to look for ethanol free gas, especially when it's costing more at the pump every time!

Last edited by jsteg; 09-19-2012 at 06:47 PM. Reason: Recalulation
jsteg is offline   Reply With Quote
Old 09-19-2012, 08:44 PM   #1884
chicagocpo
Scooby Newbie
 
Member#: 315470
Join Date: Apr 2012
Chapter/Region: NESIC
Location: Massachusetts
Vehicle:
2012 Impreza LTD
Marine Blue Pearl

Default

Quote:
Originally Posted by bobdole888 View Post
... I've been getting ~8% better mpg... The only change that I can attribute it to is that my last 3 tanks of gas were regular 87 gas from Rotten Robbie. Previous to this, I was using regular 87 gas from either Unocal 76, or Valero.
The increase in mpg was instantaneous. The mpg meter started showing ~2mpg higher results soon after I got the Rotten Robbie gas...

Our impreza is equipped with knock sensor, so if it detects knock, it will automatically retard timing and make the engine less efficient... I want to try 89, 91 gas at some point also to see if I get any boost in mpg from that.

The other point is tire pressure. I'm running 40 psi to help reduce rolling resistance...
Wouldn't be a bit surprised if the gas station made a difference. My last car, an Altima, lost 2 mpg when I filled up at Junior's Convenience vs. when I filled up at the New England Farms Mobile. 'Course I had to wait until the next fillup to find out...

Knock sensor - is that peculiar to CA cars? Supposedly I have CA-grade emissions system in my 'preza but first time I've heard of it. Never given much credence to the idea of boosting mpg with octane (didn't work for me after a tank of 89), but maybe...

I'm not as extreme as you, but I have been overinflating for years. I run 36 front/34 rear to get a bit of lift without stiffenning the ride too much. Side note, it took me 2 or 3 weeks to check the tire pressure after buying the car, and when I did I found the dealer had not deflated from the "shipping pressure" (their term) of ~48 psi! No ill effects on the tires I could see.
chicagocpo is offline   Reply With Quote
Old 09-19-2012, 09:15 PM   #1885
flyboy1100
Scooby Guru
 
Member#: 314216
Join Date: Mar 2012
Location: ND
Vehicle:
2012 2.0i Sport 5MT
DGM

Default

Quote:
Originally Posted by jsteg

1.5mpg will only get you 21 miles farther (based on 14 gallons) for that extra 0.60.......so in a year (based on 15k) you'll have filled up 36 times gained of total of 714 miles for a total of 15,714, and at the cost of $21.60 (based on 30mpg combined). Considering that, I will stay focused on using quality BRAND fuels, rather than ethanol free.

714 miles spread out over a year isn't enough for me to go out of my way to look for ethanol free gas, especially when it's costing more at the pump every time!
But considering an average of around 30mpg, those extra miles would cost 88.00 instead of 21 (3.70/gallon average).

For me it is a no brainer, unless I'm out of town, i know where to get ethanol free gas, and i fill up there everytime as it is on my normal commute. If I'm out of town, I'm not searching for it
flyboy1100 is offline   Reply With Quote
Old 09-19-2012, 09:32 PM   #1886
sgoldste01
Scooby Specialist
 
Member#: 322264
Join Date: Jun 2012
Chapter/Region: Tri-State
Location: Webster, NY
Vehicle:
2012 Impreza Sp 5sp
Obs Blk Prl/Drk Gray Mtl

Default

My problem is that the only convenient gas station I've found that sells ethanol-free gas only sells it in its Premium gas product. The regular and mid-grade gas have ethanol. I don't want to pay for Premium in order to also get ethanol-free gas.
sgoldste01 is offline   Reply With Quote
Old 09-19-2012, 10:00 PM   #1887
flyboy1100
Scooby Guru
 
Member#: 314216
Join Date: Mar 2012
Location: ND
Vehicle:
2012 2.0i Sport 5MT
DGM

Default

Quote:
Originally Posted by sgoldste01 View Post
My problem is that the only convenient gas station I've found that sells ethanol-free gas only sells it in its Premium gas product. The regular and mid-grade gas have ethanol. I don't want to pay for Premium in order to also get ethanol-free gas.
only mid grade is ethanol here (well not everywhere here, there are enough stations that have it in everything :-()
flyboy1100 is offline   Reply With Quote
Old 09-20-2012, 12:27 AM   #1888
bobdole888
Scooby Newbie
 
Member#: 316658
Join Date: Apr 2012
Vehicle:
2012 Impreza limited
5dr silver

Default

How does anyone how much ethanol is mixed in with gas?
Is there some law that requires gas stations to post this info at the pump?

Some people say that premium gas contain less ethanol, but how would we know for sure what we're getting.
bobdole888 is offline   Reply With Quote
Old 09-20-2012, 04:32 AM   #1889
jsteg
Scooby Specialist
 
Member#: 329271
Join Date: Aug 2012
Chapter/Region: South East
Location: Lady's Island, SC
Vehicle:
2012 Impreza Limited
Ice Silver Metallic

Default

Quote:
Originally Posted by bobdole888
How does anyone how much ethanol is mixed in with gas?
Is there some law that requires gas stations to post this info at the pump?

Some people say that premium gas contain less ethanol, but how would we know for sure what we're getting.
Yes there is!
jsteg is offline   Reply With Quote
Old 09-20-2012, 04:54 AM   #1890
Penguin44
Scooby Newbie
 
Member#: 315883
Join Date: Apr 2012
Chapter/Region: E. Canada
Vehicle:
2012 IMPREZA
Silver

Default

Here in Toronto all gas has, by law, up to 10%. From what I read the low end 87 has 10 mid has like 7 and premium has 5,approximately. There are a few stations that carry super 94 but people say it still has some in it and at the moment costs 1.53 to 1.64/litre depending on the day lol.
Penguin44 is offline   Reply With Quote
Old 09-20-2012, 02:56 PM   #1891
jr0bb5
Scooby Specialist
 
Member#: 315353
Join Date: Apr 2012
Chapter/Region: NESIC
Location: MA
Vehicle:
2012 Impreza Sp Prem
5MT OBP/DGM

Default

No ethanol free gas stations in my entire state.
jr0bb5 is offline   Reply With Quote
Old 09-20-2012, 02:58 PM   #1892
flyboy1100
Scooby Guru
 
Member#: 314216
Join Date: Mar 2012
Location: ND
Vehicle:
2012 2.0i Sport 5MT
DGM

Default

Quote:
Originally Posted by jr0bb5
No ethanol free gas stations in my entire state.
I heard that ND just passed a law mandating it, but not sure when. All other states around me mandate it
flyboy1100 is offline   Reply With Quote
Old 09-20-2012, 05:01 PM   #1893
flyboy1100
Scooby Guru
 
Member#: 314216
Join Date: Mar 2012
Location: ND
Vehicle:
2012 2.0i Sport 5MT
DGM

Default

Quote:
Originally Posted by freshpreza View Post
ok yea the gas is great but people i have a sexy white 2012 impreza and its too slow does any one know a website where i can buy a turbo, or should i do a swap out to a 2011 sti engine/ tranny. i will not trade my car for a wrx or sti i just want to work on it and make like a sti ?
flyboy1100 is offline   Reply With Quote
Old 09-20-2012, 05:56 PM   #1894
ans2k
Scooby Specialist
 
Member#: 315631
Join Date: Apr 2012
Location: Bryant, AR
Vehicle:
2012 Impreza Sport

Thumbs down

Quote:
Originally Posted by freshpreza View Post
ok yea the gas is great but people i have a sexy white 2012 impreza and its too slow does any one know a website where i can buy a turbo, or should i do a swap out to a 2011 sti engine/ tranny. i will not trade my car for a wrx or sti i just want to work on it and make like a sti ?

It propably would be cheaper buying a sti than to build an sti. From the way you post my money is that you don't know your mechanics very well. But in short, your answer is no. mom and dad bought u the wrong car and now you are trying to "build" the car u want.
ans2k is offline   Reply With Quote
Old 09-20-2012, 06:07 PM   #1895
sgoldste01
Scooby Specialist
 
Member#: 322264
Join Date: Jun 2012
Chapter/Region: Tri-State
Location: Webster, NY
Vehicle:
2012 Impreza Sp 5sp
Obs Blk Prl/Drk Gray Mtl

Default

Quote:
Originally Posted by freshpreza View Post
ok yea the gas is great but people i have a sexy white 2012 impreza and its too slow does any one know a website where i can buy a turbo, or should i do a swap out to a 2011 sti engine/ tranny. i will not trade my car for a wrx or sti i just want to work on it and make like a sti ?
What tranny do you have in your car (CVT or manual)?
sgoldste01 is offline   Reply With Quote
Old 09-20-2012, 06:13 PM   #1896
jsteg
Scooby Specialist
 
Member#: 329271
Join Date: Aug 2012
Chapter/Region: South East
Location: Lady's Island, SC
Vehicle:
2012 Impreza Limited
Ice Silver Metallic

Default

Quote:
Originally Posted by freshpreza View Post
ok yea the gas is great but people i have a sexy white 2012 impreza and its too slow does any one know a website where i can buy a turbo, or should i do a swap out to a 2011 sti engine/ tranny. i will not trade my car for a wrx or sti i just want to work on it and make like a sti ?
I smell a troll.......
jsteg is offline   Reply With Quote
Old 09-20-2012, 10:35 PM   #1897
Penguin44
Scooby Newbie
 
Member#: 315883
Join Date: Apr 2012
Chapter/Region: E. Canada
Vehicle:
2012 IMPREZA
Silver

Default

Don't feed it! Lol
Penguin44 is offline   Reply With Quote
Old 09-21-2012, 07:54 PM   #1898
subiTWO
Scooby Newbie
 
Member#: 273054
Join Date: Feb 2011
Vehicle:
2012 Impreza CVT HB

Default

If you *want* better mpg, you'll only get it by slowing down! I've done the variations, and it is the number 1 influence on mpg. This car does NOT get good hwy mpg. I went for a 140 mile strict hwy drive last weekend, 62 mph actual, 36.3 mpg indicated. Driving 40 miles stop-and-go commute to work this week, 55 mph top speed, I showed 36.0 mpg. I topped 41 mpg indicated one saturday, driving 5 under the limit to work.
subiTWO is offline   Reply With Quote
Old 09-21-2012, 08:07 PM   #1899
jsteg
Scooby Specialist
 
Member#: 329271
Join Date: Aug 2012
Chapter/Region: South East
Location: Lady's Island, SC
Vehicle:
2012 Impreza Limited
Ice Silver Metallic

Default

Quote:
Originally Posted by subiTWO
If you *want* better mpg, you'll only get it by slowing down! I've done the variations, and it is the number 1 influence on mpg. This car does NOT get good hwy mpg. I went for a 140 mile strict hwy drive last weekend, 62 mph actual, 36.3 mpg indicated. Driving 40 miles stop-and-go commute to work this week, 55 mph top speed, I showed 36.0 mpg. I topped 41 mpg indicated one saturday, driving 5 under the limit to work.
All things considered and taking into consideration what competitors have to offer I think this car gets good hwy mpg for an all wheel drive!
jsteg is offline   Reply With Quote
Old 09-21-2012, 10:52 PM   #1900
flyboy1100
Scooby Guru
 
Member#: 314216
Join Date: Mar 2012
Location: ND
Vehicle:
2012 2.0i Sport 5MT
DGM

Default

Quote:
Originally Posted by jsteg View Post
All things considered and taking into consideration what competitors have to offer I think this car gets good hwy mpg for an all wheel drive!
exactly. if you want better mpg with the loss of awd then that exists. but i wanted decent mpg w/ awd and I have no complaints.
flyboy1100 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
New Impreza owner, low mpg? stuffedcabbage Newbies & FAQs 36 08-28-2017 07:10 AM
2012 Impreza Reviewed - Whytecliff to Seymour brendan_mac Vancouver Impreza Club Forum -- VIC 16 12-23-2011 01:12 PM
NJ Impreza owners - sighting Dan G General Forum Archive 76 10-06-2000 12:24 AM
Md or Va Impreza owners - I have an Impreza related question. Snoopy General Forum Archive 1 06-05-2000 08:08 AM

All times are GMT -4. The time now is 05:38 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2024 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission
Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.