Welcome to the North American Subaru Impreza Owners Club Saturday December 15, 2018
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
Alaskan Impreza Club
Go Back   NASIOC > NASIOC Chapters > Alaskan Impreza Club Forum -- AKIC

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 07-12-2012, 05:09 AM   #1
_nut_
Scooby Newbie
 
Member#: 259980
Join Date: Oct 2010
Chapter/Region: AKIC
Location: Anchorage
Vehicle:
2011 WRX Ltd Sedan
WRB

Default Best octane in anchorage?

Odd question...

Coming from an area that had 93 octane as the 'premium' ... I got used to using that. Where is there anything better than 90 in town? My search in the threads didn't yield anything, so I thought i would ask.
* Registered users of the site do not see these ads.
_nut_ is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 07-12-2012, 05:19 AM   #2
Tripster
Scooby Newbie
 
Member#: 226944
Join Date: Oct 2009
Chapter/Region: AKIC
Location: Anchorage, AK
Vehicle:
2009 Subaru SSM
Element Auto Sponsored

Default

Quote:
Originally Posted by _nut_
Odd question...

Coming from an area that had 93 octane as the 'premium' ... I got used to using that. Where is there anything better than 90 in town? My search in the threads didn't yield anything, so I thought i would ask.
100 Low Led at the Airport or Sunoco 104 at Muldoon Auto.
Tripster is offline   Reply With Quote
Old 07-12-2012, 06:11 AM   #3
Carter
Scooby Specialist
 
Member#: 156708
Join Date: Aug 2007
Chapter/Region: AKIC
Location: Palmer, AK
Vehicle:
2004 Mini Cooper S
Invader 125 Shifter Kart

Default

100 LOW LEAD IS NOT FOR CARS. IT WILL BREAK THINGS.

Also, read the stickies. This question has been asked and answered multiple times .
Carter is offline   Reply With Quote
Old 07-12-2012, 06:36 AM   #4
Tripster
Scooby Newbie
 
Member#: 226944
Join Date: Oct 2009
Chapter/Region: AKIC
Location: Anchorage, AK
Vehicle:
2009 Subaru SSM
Element Auto Sponsored

Default

Quote:
Originally Posted by Carter
100 LOW LEAD IS NOT FOR CARS. IT WILL BREAK THINGS.
haha hence why it's at the airport lmao!
Tripster is offline   Reply With Quote
Old 07-12-2012, 12:24 PM   #5
coldfiremx
Scooby Specialist
 
Member#: 285848
Join Date: Jun 2011
Chapter/Region: AKIC
Location: Butte/Palmer
Vehicle:
2002 WRX
Black

Default

112 Sunoco @ Muldoon auto.
coldfiremx is offline   Reply With Quote
Old 07-12-2012, 02:13 PM   #6
QwikEVO
Scooby Specialist
 
Member#: 44172
Join Date: Sep 2003
Location: Clovis, NM
Vehicle:
2006 Lancer Evo 9
Plasti-Dip is for TOOLS

Default

Pretty much the answer is at the pump, 90
Is all youre gonna get.
QwikEVO is offline   Reply With Quote
Old 07-12-2012, 05:31 PM   #7
Ppagnotta
Scooby Newbie
 
Member#: 308950
Join Date: Feb 2012
Chapter/Region: AKIC
Location: Anchorage
Vehicle:
2010 Impeza wrx
black

Default

you could always add torco to your fuel...
http://torcoracefuel.net/pro-accelerator.html
Ppagnotta is offline   Reply With Quote
Old 07-12-2012, 05:54 PM   #8
Brando5185
Scooby Specialist
 
Member#: 189926
Join Date: Sep 2008
Chapter/Region: International
Location: Okinawa, Japan
Vehicle:
2000 RHD STi

Default

Meth!
Brando5185 is offline   Reply With Quote
Old 07-12-2012, 06:14 PM   #9
_nut_
Scooby Newbie
 
Member#: 259980
Join Date: Oct 2010
Chapter/Region: AKIC
Location: Anchorage
Vehicle:
2011 WRX Ltd Sedan
WRB

Default

I missed the stickie, sorry about that. But how does running 90 mess with the engines? WRX should run on 91 and the STI's 93. Any issues with that?
_nut_ is offline   Reply With Quote
Old 07-12-2012, 06:54 PM   #10
JesseL
Scooby Specialist
 
Member#: 169556
Join Date: Jan 2008
Chapter/Region: AKIC
Location: Fairbanks
Vehicle:
07' OPB STi BW S256
01' 2.5rs GM6 w/leather!

Default

Yes, there are issues.

See above for solutions.
JesseL is offline   Reply With Quote
Old 07-12-2012, 07:23 PM   #11
coldfiremx
Scooby Specialist
 
Member#: 285848
Join Date: Jun 2011
Chapter/Region: AKIC
Location: Butte/Palmer
Vehicle:
2002 WRX
Black

Default

Quote:
Originally Posted by _nut_
Odd question...

Coming from an area that had 93 octane as the 'premium' ... I got used to using that. Where is there anything better than 90 in town? My search in the threads didn't yield anything, so I thought i would ask.
To reliably and conveniently run a tune that requires 93 octane I would recommend investing in an Aquamist methanol injection kit. If the install looks like too big of a job there are a few shops in Anchorage or the Valley that can install and tune.
coldfiremx is offline   Reply With Quote
Old 07-12-2012, 08:59 PM   #12
_davin
Scooby Specialist
 
Member#: 260501
Join Date: Oct 2010
Chapter/Region: AKIC
Location: Anchorage, Alaska
Vehicle:
2003 miata SE
Blurple

Default

Running a stock wrx on 90 will not hurt anything, but I'm sure a tune for it would be better.
_davin is offline   Reply With Quote
Old 07-12-2012, 10:09 PM   #13
MrzOOm
*** Banned ***
 
Member#: 318824
Join Date: May 2012
Chapter/Region: AKIC
Location: Palmer, AK
Vehicle:
05 Elise

Default

It will ruin a cat if you have one of those, also it's tough on O2 sensors, but regular race gas isn't all that much better on them either.
I mix it with 90 octane pump gas since the 100LL is pretty dry. I wouldn't run 100% 100LL for that reason.

And of course the obvious that it's "illegal" to run on the road, but we are talking "race only". I run 90 octane other than when racing, though it will run just fine on regular gas too, just less power. I can't remember if the Subarus use a knock sensor? On the Toyota motor it will just adjust spark and fuel timing based on knock.

I dunno what the race fuel costs, but the last time I bought av gas was about a month ago and it was a bit over $5/gal at the Wasilla airport.

Quote:
Originally Posted by Carter View Post
100 LOW LEAD IS NOT FOR CARS. IT WILL BREAK THINGS.

Also, read the stickies. This question has been asked and answered multiple times .

Last edited by MrzOOm; 07-12-2012 at 10:16 PM.
MrzOOm is offline   Reply With Quote
Old 07-13-2012, 02:05 AM   #14
akeric
Scooby Specialist
 
Member#: 122954
Join Date: Aug 2006
Chapter/Region: AKIC
Location: Anchorage, AK
Vehicle:
2006 Evo IX
My car is black not

Default

Quote:
Originally Posted by coldfiremx View Post
To reliably and conveniently run a tune that requires 93 octane I would recommend investing in an Aquamist methanol injection kit. If the install looks like too big of a job there are a few shops in Anchorage or the Valley that can install and tune.
if you go the meth route you'll need to be tuned for it anyway, might as well get a 90 octane tune and save the $800 the meth kit costs.

Op if your determined to keep your 93 octane tune the only real choice is to run 1/3 can of torco in each tank, that should give you 93 or a little higher.
akeric is offline   Reply With Quote
Old 07-14-2012, 04:37 PM   #15
_nut_
Scooby Newbie
 
Member#: 259980
Join Date: Oct 2010
Chapter/Region: AKIC
Location: Anchorage
Vehicle:
2011 WRX Ltd Sedan
WRB

Default

I guess I should have been clearer from the start. Coming from Chicago we have 93 as the 'premium.' I saw that 90 was the highest at a number of places around. I was just curious if this were still the case.

Second, wrx's should get 91 as the lowest (at least according to the manual) and I wondered how 90 vs 91 affects the engine/life. I presume that the audis, porsche and mercs all deal with this too. I'm not going meth and would prefer to not tune it. I like my virgin the way she is.
_nut_ is offline   Reply With Quote
Old 07-14-2012, 04:47 PM   #16
_davin
Scooby Specialist
 
Member#: 260501
Join Date: Oct 2010
Chapter/Region: AKIC
Location: Anchorage, Alaska
Vehicle:
2003 miata SE
Blurple

Default

Yes 90 is the highest available at the pump anywhere in the state as far as I know. I ran my stock WRX with the factory tune without issue, like someone else said,I believe the ecu should compensate for it.
_davin is offline   Reply With Quote
Old 07-14-2012, 08:40 PM   #17
JesseL
Scooby Specialist
 
Member#: 169556
Join Date: Jan 2008
Chapter/Region: AKIC
Location: Fairbanks
Vehicle:
07' OPB STi BW S256
01' 2.5rs GM6 w/leather!

Default

Lower octane will cause the engine to 'ping', or detonate under higher load sections of timing curves. With this 'ping' comes an audible sound that the ECU will pickup via a knock sensor. The ECU will remove timing (read; power) from that section of the timing table and the car should drive per normal. Another un-fortunate situation would be that one of these 'pings' causes damage to the main bearings and may cause, but not limited to, spun bearing.

So the TL;DR, lower octane isn't the end of the world, if everything working properly it SHOULD just pull timing and you will see less horsies.

I'm sure if the engine tuners feel the need to chip in, they can give you much more detailed and prolly more accurate descriptions of what's going on, and other pro/cons... but that's the jist.
JesseL is offline   Reply With Quote
Old 07-14-2012, 08:47 PM   #18
_davin
Scooby Specialist
 
Member#: 260501
Join Date: Oct 2010
Chapter/Region: AKIC
Location: Anchorage, Alaska
Vehicle:
2003 miata SE
Blurple

Default

Just have retraC give you a tune when you get up here, and you won't have to think about it again, and maybe even make more power.
_davin is offline   Reply With Quote
Old 07-15-2012, 01:24 AM   #19
tribalwrx
Scooby Specialist
 
Member#: 32993
Join Date: Feb 2003
Chapter/Region: AKIC
Location: anchorage,alaska
Vehicle:
vf39 Best trap 110
Best ET 12.51 Dale tuned

Default

If the car is unmolested then the 90 oct will be fine, just when you get up here after u put the 90 oct in the tank reset the ecu and as for gas stations up here use only chevron or shell gas they offer the best we have up here.
tribalwrx is offline   Reply With Quote
Old 07-24-2012, 04:18 AM   #20
kayetealynn
Scooby Specialist
 
Member#: 253304
Join Date: Jul 2010
Chapter/Region: AKIC
Location: Eagle River, AK
Vehicle:
2001 Impreza 2.5RS
Plus MOAR

Default

Stock ECU from my understanding works like this:

Your car is running so many degrees of timing at a certain rpm/load value as so predetermined by your map. When the stock ECU experiences a knock event, it immediately pulls timing and it remembers in what circumstances that event happened. If it experiences knock events in the same circumstances multiple times, it will record a learned timing correction and will pull timing to prevent future knock events from happening at x rpm/load value etc.

The ECM is fully capable of compensating for 90 octane. Sure.. You can't get the same amount of power from it on a stock map.. But you aren't going to kill it by using 90 octane.

I would also recommend a reset when you get here to allow your ECM to relearn on 90.

EDIT: oh.. And use Chevron/Shell only too.
kayetealynn is offline   Reply With Quote
Old 07-24-2012, 04:26 AM   #21
MrzOOm
*** Banned ***
 
Member#: 318824
Join Date: May 2012
Chapter/Region: AKIC
Location: Palmer, AK
Vehicle:
05 Elise

Default

In case you didn't know, the gas all comes from the same place, it's all the same minus a very minor amount of additives that are added while the tanker is filling up with a load of fuel. The same additives you can buy at the store (like the little bottle of "techron" for $2.99

How do I know this? One of my good friends runs a truck and fills most of the gas stations.

Quote:
Originally Posted by tribalwrx View Post
If the car is unmolested then the 90 oct will be fine, just when you get up here after u put the 90 oct in the tank reset the ecu and as for gas stations up here use only chevron or shell gas they offer the best we have up here.
MrzOOm is offline   Reply With Quote
Old 07-24-2012, 04:40 AM   #22
_davin
Scooby Specialist
 
Member#: 260501
Join Date: Oct 2010
Chapter/Region: AKIC
Location: Anchorage, Alaska
Vehicle:
2003 miata SE
Blurple

Default

You know, I only ever trusted Chevron in Fairbanks, and now that I'm down here I use the V-power but is there any data on why? Not the additives but why the others are bad.
_davin is offline   Reply With Quote
Old 07-24-2012, 05:01 AM   #23
MrzOOm
*** Banned ***
 
Member#: 318824
Join Date: May 2012
Chapter/Region: AKIC
Location: Palmer, AK
Vehicle:
05 Elise

Default

The main thing that would cause "bad" fuel would be tanks allowing moisture to get in, either from not being sealed well, or from low sales volume.
The best fuel would come from a station that sells a lot, so it's always fresh.

I've filled both gas and diesel at just about every station in Anchorage and never had a problem that I can remember. Couple years ago I got almost 400 gallons of 10 year old diesel from a generator tank that was pumped out. I ran that in the Jetta and got 50mpg out of the car. The new stuff they sell I get 43-45mpg. Explain that one!
MrzOOm is offline   Reply With Quote
Old 07-24-2012, 05:25 AM   #24
_davin
Scooby Specialist
 
Member#: 260501
Join Date: Oct 2010
Chapter/Region: AKIC
Location: Anchorage, Alaska
Vehicle:
2003 miata SE
Blurple

Default

Refining standards with new emission laws?
_davin is offline   Reply With Quote
Old 07-24-2012, 05:13 PM   #25
YellowSRT
Scooby Newbie
 
Member#: 316871
Join Date: Apr 2012
Chapter/Region: AKIC
Location: Anchorage
Vehicle:
2003 SRT4
Solar Yellow

Default

Where do people buy their Meth from here in Anchorage? What's the highest Meth percentage washer fluid you have seen and where?

Last edited by YellowSRT; 07-24-2012 at 06:40 PM.
YellowSRT 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

All times are GMT -4. The time now is 11:18 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2018 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.