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Old 12-17-2012, 06:07 PM   #403
Smurftastic
Scooby Specialist
 
Member#: 243697
Join Date: Apr 2010
Chapter/Region: MAIC
Location: Virginia
Vehicle:
02 Stg2+ WRX
Top Scoob 031

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Even if you drive like a grandma, you're running an aftermarket tune on an STi longblock. I don't know about your Bugeye, but mine says to only use premium right in the owner's manual, and I'm not even running a EJ257 like you. Running a 89 or lower octane on a 93 octane tune will induce increased knock and thus increased wear on your engine internals. Also, using a mid-grade fuel on a pro/shelf tune, you will get a lower MPG than with 93 octane, resulting in a lower amount of savings at the pump than you think you may be getting.

You have a great setup and clearly have invested a decent amount of time and money into it, it'd be a shame to see increased detonation screw up all the effort you've put into this.

Please, for the love of God, stay out of boost until you start running 93 octane.
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Last edited by Smurftastic; 12-17-2012 at 07:03 PM.
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