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Old 11-10-2005, 03:16 PM   #1
Scooby Specialist
Member#: 96164
Join Date: Sep 2005
Chapter/Region: Tri-State
Location: NY
2005 STi - SOLD :(
'00 Impreza 2.5rs

Default Using Toluene for octane boost question...

I'm going to add 3 gallons of Toluene to roughly 10 gallons of 93 pump gas (or whatever it takes to fill it) in my '05 STi.

My question is how much "Marvel Mystery Oil" should I add?

Is there a recommended ammount per gallon of toulene?
Is it even necessary to add the oil?

I know some people will add straight transmission oil, but I already have a bottle of MMO.

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StiPete is offline   Reply With Quote
Old 11-10-2005, 04:01 PM   #2
Scooby Guru
Member#: 44168
Join Date: Sep 2003
Chapter/Region: SCIC
Location: In your pant[ie]s.
2003 Yellow WRX
with too many lights...


It's necessary to condition the rubber fuel lines. Toluene is a strong solvent which can/will dry out the rubber. I'm not sure how much, it's been said to add "afew ounces", but i have no idea how much that really constitutes...
Psydotek is offline   Reply With Quote

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