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Old 05-11-2007, 05:27 PM   #1
Scooby Specialist
Member#: 71682
Join Date: Oct 2004
Chapter/Region: SCIC
Location: Socal with BORICUA blood...
2007 WRX Sti LTD.

Default Who is making 93 gas from 91 and race gas for daily driving???

I have a 2007 STi with a knocklite that is going off on 3 rd and 4th gear @ WOT around 3000 to 4000 rpms. I mixed 91 and 104 gas and the light knock is gone.

I make some #'s and a tank of 93 will cost me $10.00 more that a 91 tank. my question is if I should do this or just let the car on 91 and until i get a AP + protune in around 2 to 3 months.

The gas station is pretty close to my place, so that is not a big deal..

Any of the So Caler doing this?????
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Old 05-11-2007, 05:34 PM   #2
Scooby Guru
Member#: 63612
Join Date: Jun 2004
Chapter/Region: SCIC
Location: SoCal - Chino Hills
2004 dom 2.5 wrx
Rally Blue


kjr is pm him, he has a science to it ; P
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Old 05-11-2007, 06:02 PM   #3
Scooby Specialist
Member#: 70337
Join Date: Sep 2004
Chapter/Region: SCIC
Location: Anaslime Hills
2005 STi
What's that on your hood?


There is a chart floating around somewhere that tells octanes for mixing fuel. I just did the AP thing. It's easier than having to mix every fill up.
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Old 05-11-2007, 06:06 PM   #4
Scooby Specialist
Member#: 146200
Join Date: Apr 2007
Chapter/Region: SCIC
Location: Orange County
2009 Supermoto


heres a mixing chart from 76 for mixing 91/100 octane....dunno if it will help but there it is

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Old 05-12-2007, 02:33 AM   #5
Supraru gt
Scooby Newbie
Member#: 143270
Join Date: Mar 2007
Chapter/Region: SCIC
Location: LA area
00 too many


i think you need to answer your own question
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