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Old 05-21-2002, 12:53 AM   #1
Impreza25RS
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Member#: 4850
Join Date: Mar 2001
Location: Back to Boostin' in SLC!
Vehicle:
1998 EJ22.5RS-T
more mods coming soon!!

Default What are recomended fluids for RS-T's?

Just curious to see what oil/ tranny/ diff fluids everyone is using and what they like the best. Im going to be getting my turbo in soon and want to swap out the bad stuff with the good stuff before that happens. Its for a 98RS if that makes any difference. Thanks for the opinions everyone...
Kyle
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Old 05-21-2002, 12:58 AM   #2
Eric SS
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Chapter/Region: SWIC
Location: 2013 335i, 2011 G37 coupe
Vehicle:
2000 2.5RS w/ EJ22T
swap and N20. gone. : (

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Stock tranny and gear oil is fine. I run Mobil 1 15w-50 in the summer and 10w-40 in the winter for engine oil.

Eric
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Old 05-21-2002, 01:30 AM   #3
Hojai
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but someone told me i should use the same grade of engine oil that subaru recommends us to use all year around.
is that true?
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Old 05-21-2002, 01:35 AM   #4
Eric SS
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Member#: 1914
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Chapter/Region: SWIC
Location: 2013 335i, 2011 G37 coupe
Vehicle:
2000 2.5RS w/ EJ22T
swap and N20. gone. : (

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Quote:
Originally posted by Hojai
but someone told me i should use the same grade of engine oil that subaru recommends us to use all year around.
is that true?
You can if you want to. Honestly, none of us will probably own our cars without rebuilding the engine long enough for it to matter what oil we use but as a performance engine builder myself (up to 1000hp small block chevy's), I have old habits and oil techniques that i will always live by

Eric
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Old 05-21-2002, 04:36 PM   #5
Hojai
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so what grade of oil do you recommend RS-T to use in summer and winter time?
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Old 05-22-2002, 10:23 PM   #6
Legacy GTR
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I use 10W-30 Synthetic, year round.
Mike
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Old 05-23-2002, 08:06 PM   #7
jeff22
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99 impreza rs-t
rally blue pearl

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15-50 mobil 1 SYN Summer, Winter Don't care I don't drive it. Just DON'T USE a oil with a big viscosity difference 0-30 or 5-40
a straight weight is suppose to be the best for turbo. stick with better brands like mobil.
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Old 05-24-2002, 02:43 AM   #8
LVSUBARU
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93 STi V.4 RA
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I use Mobil One 5w 30 in my motor. I change it every 2k miles. I haven chenged my trans or diffs yet.
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