Welcome to the North American Subaru Impreza Owners Club Wednesday July 23, 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 Archives > NASIOC Archives > STi Forum Archive

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.
 
 
Thread Tools Display Modes
Old 08-12-2003, 08:56 PM   #1
jbell73
Scooby Newbie
 
Member#: 36566
Join Date: May 2003
Vehicle:
2004 STi
Platinum Silver

Default To buy, or not to buy that is the ??? in California

Well, I know I've seen threads similar to this, but I'm not sure I've seen them on this exact topic.

I live in California, in the land of the 91 octane. I have no intention of hunting for racing fuel, mixing additives, or creating additives.

So here is the question:

If I am never going to put anything better than 91 octane, do I get the STI?

Will I possibly do damage that will not be covered under warranty since it wasn't used "temporarily" as it states in the manual?

I understand that I may not get the full potential performance wise out of the car, that's fine. Let's stick to whether the car will be reliable, and SOA's warranty stance. I don't plan on modifying anything except the audio system in the car.

Any input would be gratly appreciated.

If this topic has already been discussed, then please direct me to it, as I could not find such a thread in the search.

Thanks!
-J
* Registered users of the site do not see these ads.
jbell73 is offline  
Old 08-13-2003, 12:19 AM   #2
Fair Oaks STI
Scooby Newbie
 
Member#: 39759
Join Date: Jul 2003
Location: Fair Oaks, Ca
Vehicle:
2004 WRX STI
Blue w/silver wheels

Default

I live in California. I use 91 Octane. I smoke most of the crap on the road. I don't have a detonation problem. I'm enjoying the car.

I don't think you'll have a problem. That's what the warranty is for, and if you're worried, get the extended warranty....I did.
Fair Oaks STI is offline  
Old 08-13-2003, 01:55 AM   #3
toobee1
Scooby Newbie
 
Member#: 7439
Join Date: Jun 2001
Location: Los Angeles
Vehicle:
2002 WRX
Blaze Yellow

Default

For what it is worth, following is my email inquiry of 8/11/03 and the reply from SOA relating to the subject of the Octane rating necessary to run a STI in California. I think Subaru should issue a formal rescission of the page entitled "Gas Station Reference", since it conflicts with the Page 7-2 of the Owners manual as per Mr. Mergen of SOA.



My E-mail question to SOA:

I am interested in purchasing a new WRX STI and have a question that the dealers have been unable to resolve. I live in California where the highest octane rating on gasoline is 91 AKI. The owners manual for the WRX STI on the page entitled 'Gas Station Reference' (this page is not numbered and is in the last few pages of the manual-so I assume it has been appended to the owners manual and supercedes page 7-2) states that gasoline with 91AKI octane rating may be 'temporarily used.' I would like to know what the Subaru official policy is on this issue since the information on this appended page conflicts with page 7-2 which states that gasoline with an octane rating of 91 AKI can be used on a permanent basis.

The Reply from Subaru:

Thank you for visiting the Subaru Web site and for your interest in Subaru products. We apologize for this conflicting information in the owner's manual for the 2004 WRX STi fuel requirements. For optimal performance, you should use 93 AKI fuel in the 2004 WRX STi. If super-premium unleaded gasoline with an octane rating of 93 AKI or higher is not available, such as in California, premium unleaded gasoline with an octane rating of 91 AKI can be used.

Only performance is affected by not using 93 AKI fuel. The horsepower of the WRX STi is rated at 300 when using 93 AKI fuel. The performance will be less if less than 93 AKI fuel is used. 91 AKI fuel is acceptable to use in the WRX STi if 93 AKI is not available.

We do not recommend using a fuel additive like an 'octane booster.'

Thanks for the opportunity to be of assistance. If you need any future assistance, please feel free to contact us again.

Best wishes,

John J. Mergen
Subaru of America, Inc.
-----------------------------------------------------------
toobee1 is offline  
Old 08-13-2003, 03:40 AM   #4
Triple S
*** Banned ***
 
Member#: 39300
Join Date: Jul 2003
Location: Southern California
Vehicle:
'04 STI
Silver on Silver

Default

To answer your question: YES GET THE STI

2 octane will not prevent you from enjoying a car like this. A fellow NASIOC board member described the STI so eloquently when he said that driving the STI is the most fun you will have with your clothes on.

My addition: Such an experience is unimaginable. Those license plates that say, "Get In, Sit Down, and Shut UP!" must have been designed by someone who had driven the STI before it was available.

Unless you have $100K to spend on a car (and you do not seek status when you buy your car), you can not get a better car IMHO. Of course, insert EVO for those mitsu fans.

As if my message did not come through clear enough, I flew from SoCal to Salt Lake to buy one before I had ever driven the car. That was one of the most exciting experiences that I have to share about the car. If you have the money, you will only be unhappy that you did not get the car sooner.
Triple S is offline  
Old 08-17-2003, 03:16 PM   #5
dangrass
Scooby Newbie
 
Member#: 31071
Join Date: Dec 2002
Location: Oakland. CA
Vehicle:
2003 WRX Wagon
Silver

Default

So, how much power do you lose running the car on 91 octane? Is this the reason for the detonation issues?
dangrass is offline  
Old 08-17-2003, 06:03 PM   #6
toobee1
Scooby Newbie
 
Member#: 7439
Join Date: Jun 2001
Location: Los Angeles
Vehicle:
2002 WRX
Blaze Yellow

Default

I don't think anyone knows yet how much horsepower is lost running on 91 octane. Cause of detonation is probably related to a correctable programing error in the ECU (my opinion.) By the way, I read the owners manual for a new Lancer EVO and it recommends using 98 Octane and 91 temporarily. I wonder how much horsepower the Lancer will lose?
toobee1 is offline  
Old 08-17-2003, 06:25 PM   #7
jbrennen
Scooby Newbie
 
Member#: 37478
Join Date: May 2003
Location: San Diego
Vehicle:
2003 Evo
Silver

Default

Quote:
Originally posted by toobee1
By the way, I read the owners manual for a new Lancer EVO and it recommends using 98 Octane and 91 temporarily. I wonder how much horsepower the Lancer will lose?
The 98 octane referred to in the Evo manual is 98 RON (Research Octane Number) which corresponds to about 93 to 94 pump octane in the US.

Between 93 octane and 91 octane, the Evo seems to lose approximately 15 peak HP at the lower octane number.
jbrennen is offline  
 

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
Teh WING or NOT teh WING: that is the question SuBK North West Impreza Club Forum -- NWIC 60 11-30-2007 03:18 AM
dual port, or not dual port, that is the question. rufracer Normally Aspirated Powertrain 3 07-23-2007 08:01 PM
To Trade or Keep STi spoiler!? That is the question. beastSTI North West Impreza Club Forum -- NWIC 14 07-27-2005 01:46 AM
To buy or not to buy, thats the question (VF39, Sti Top mount and Perrin intake) LqSilver Factory 2.0L Turbo Powertrain 6 04-15-2004 08:06 PM
MY00-01 2.5RS or MY02 2.5RS, to buy or not to buy, that is the question Fujiwara General Community 7 04-24-2002 08:54 PM


All times are GMT -4. The time now is 12:39 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.