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Old 03-14-2006, 10:22 AM   #1
Alan l.
Scooby Specialist
Member#: 90085
Join Date: Jun 2005

Default Redline or Royal Purple transmission fluid for 4EAT WRX???

I have an 05 wagon with about 7800 miles on it. I'm just wondering if members here have experience with putting in redline or royal purple transmission oil in their automatics. Better? worse? Stick with stock stuff?

I want to make sure this tranny lasts a very long time with my stage 2 setup


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Old 03-14-2006, 11:10 AM   #2
Scooby Specialist
Member#: 85900
Join Date: Apr 2005
Chapter/Region: NESIC
Location: Maine
2001 Forester S


no wrx here but i use trickshift (im 4eat)
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Old 03-14-2006, 12:45 PM   #3
Mann Engineering
Member#: 77164
Join Date: Dec 2004
Chapter/Region: BAIC
Location: Santa Clara, CA
2004 WRX Wagon
2013 BRZ Limited


We have some customers that are using the NEO ATF. So far people have noticed smoother shifting and some improved fuel efficiency.

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Old 03-17-2006, 02:51 PM   #4
Scooby Newbie
Member#: 90480
Join Date: Jul 2005
Chapter/Region: BAIC
Location: Nor Cal, CA
2005 9-2x


I'm going to try Amsoil Universal ATF, going on 98xx miles. You really need to do the torque converter mod especially at stg.2....Protorque modded.
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