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#1 2016-05-11 23:47:27

TheSilverAero
Member
Registered: 2016-04-16
User Number: 36424
Posts: 9

Trans Fluid?

What's fluid do you guys run in your cars? I'm in FL so any suggestions for hot climates?  Does Subaru still but cheap oil in at the dealers?  Or is it all the Extra-S that's 75W90?

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#2 2016-05-12 01:21:16

dshack
Member
From: Palo Alto, CA
Registered: 2016-03-16
User Number: 36048
Posts: 45

Re: Trans Fluid?

I recently changed the tranny/rear diff fluid in my 05 Aero 5MT. I read a million threads about all the brews WRX owners use and the related pros/cons. At the end of the day, I ended up going with the KISS recipe: some basic 75W90 from Walmart http://www.walmart.com/ip/Super-Tech-75 … t/16795248

I've driven maybe 300 miles on the new fluid and shifts are as smooth as ever.

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#3 2016-05-12 11:45:17

Tribbe
Katrineholm
From: Sweden
Registered: 2010-08-05
User Number: 4731
Posts: 1813
Website

Re: Trans Fluid?

I have Motul Gear 300 75W90 in the front and Motul Gear 300 LS 75W90 in the rear. I can't say that I live in a hot climate...


A Few Pics of my car | Old Pics
Did I type wrong? Please correct me.

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#4 2016-05-13 07:14:32

snowphun
Member
From: Central CT
Registered: 2005-11-09
User Number: 890
Posts: 217

Re: Trans Fluid?

Extra S is worth the money, I wouldn't trust a dealership to use it. There are a few vendors that sell it my the quart, Subaru appears to only sell it in the 5 gallon drum. I'm a big fan of it but my issues were always with colder conditions; I haven't had issues with it in hot summers either.

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#5 2016-05-13 08:58:56

Bryan
why don't you remember my name?
Supporter
From: Western WI
Registered: 2007-01-14
User Number: 1768
Posts: 10180

Re: Trans Fluid?

Not exactly hot up here all the time, but I run Amsoil Severe Gear 75w-90 and have been doing so for >200k miles, with no issues.


I'm cold, and there are wolves after me.

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#6 2016-05-13 09:23:02

TheSilverAero
Member
Registered: 2016-04-16
User Number: 36424
Posts: 9

Re: Trans Fluid?

I work at a Subaru Dealer and they said they used Extra-S.  Whether they did or not who knows.  I may just wait till the next oil change and put some Motul in there.  Everyone seems to love it.

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#7 2016-07-19 14:09:43

elislider
accept no substitutes
Registered: 2014-11-30
User Number: 25881
Posts: 367

Re: Trans Fluid?

its not actually called Extra-S anymore, Subaru switched suppliers and its just called "Subaru high performance gear oil" now

I use Redline 75w90

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#8 2016-09-14 08:35:13

urabaas
Member
Registered: 2016-09-08
User Number: 37936
Posts: 46

Re: Trans Fluid?

elislider wrote:

its not actually called Extra-S anymore, Subaru switched suppliers and its just called "Subaru high performance gear oil" now

I use Redline 75w90

Sorry to Jack, but please tell us more. I have always had good luck with MT 90, but it is only gl 4. Subaru says to use gl 5. If I recall correctly the 75 90 you are referring to is gl 5. Are you running it in the trans and diff?

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#9 2016-09-14 15:19:42

snowphun
Member
From: Central CT
Registered: 2005-11-09
User Number: 890
Posts: 217

Re: Trans Fluid?

Yeah, Extra-S is no more, which is unfortunate as it was great stuff. I haven't used the new stuff, Motul 300 is a good alternative.

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#10 2016-09-15 17:26:12

elislider
accept no substitutes
Registered: 2014-11-30
User Number: 25881
Posts: 367

Re: Trans Fluid?

urabaas wrote:

elislider wrote:

its not actually called Extra-S anymore, Subaru switched suppliers and its just called "Subaru high performance gear oil" now

I use Redline 75w90

Sorry to Jack, but please tell us more. I have always had good luck with MT 90, but it is only gl 4. Subaru says to use gl 5. If I recall correctly the 75 90 you are referring to is gl 5. Are you running it in the trans and diff?

the OEM fluid is 75w90, thats what you should put in it.
Redline makes a 75w90 (use this in the rear diff) and 75w90NS (use this in the transmission)
what else do you want to know?
http://www.iwsti.com/forums/2-5-liter-l … ids-2.html

Last edited by elislider (2016-09-15 17:28:56)

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#11 2016-09-15 18:06:51

ikbrown
long live R0LO!
From: Fair Oaks, CA
Registered: 2011-10-06
User Number: 6094
Posts: 4933

Re: Trans Fluid?

What EllieSlider said. Put those same fluids in when I did my 90k service.


2005 Saab 92x Aero 5MT | The basic mods, Stage 2.04
1968 Dodge Charger 383 | WIP, restored almost everything but body work
2014 Subaru Forester | Wife's car

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#12 2016-09-15 19:03:41

urabaas
Member
Registered: 2016-09-08
User Number: 37936
Posts: 46

Re: Trans Fluid?

elislider wrote:

urabaas wrote:

elislider wrote:

its not actually called Extra-S anymore, Subaru switched suppliers and its just called "Subaru high performance gear oil" now

I use Redline 75w90

Sorry to Jack, but please tell us more. I have always had good luck with MT 90, but it is only gl 4. Subaru says to use gl 5. If I recall correctly the 75 90 you are referring to is gl 5. Are you running it in the trans and diff?

the OEM fluid is 75w90, thats what you should put in it.
Redline makes a 75w90 (use this in the rear diff) and 75w90NS (use this in the transmission)
what else do you want to know?
http://www.iwsti.com/forums/2-5-liter-l … ids-2.html

Thanks. Your thoughts, I guess. Good stuff I know, but for this car I don't.

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#13 2016-09-19 13:40:13

elislider
accept no substitutes
Registered: 2014-11-30
User Number: 25881
Posts: 367

Re: Trans Fluid?

i buy the redline stuff because it hasn't changed to save money unlike what Subaru just did with changing their OEM fluid

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