Welcome to the North American Subaru Impreza Owners Club Thursday April 24, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Transmission (AT/MT) & Driveline

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 04-01-2004, 03:40 PM   #1
h2o
Scooby Specialist
 
Member#: 7946
Join Date: Jun 2001
Location: ROC -> Republic of California
Vehicle:
94/9 MX-5/Fit
ZoomZoom/VTEC Kick'in Y0!

Question How to change S T i trans and front diff fluid?

I need to change my transmission and front diff fluid but there're couple drain plugs, I don't know which one is the right one. Can anyone help? Thank you.
* Registered users of the site do not see these ads.
h2o is offline   Reply With Quote
Old 04-02-2004, 02:07 AM   #2
ToddStratton
Scooby Specialist
 
Member#: 8351
Join Date: Jul 2001
Location: Alabama
Vehicle:
2002 WRX Wagon

Default

Drain both sides, the clutch side and the oil pan side.

Here is the text from the FSM:

1. MANUAL TRANSMISSION
1) Drain the gear oil by removing drain plug.
NOTE:
Before starting work, cool off the transmission
gear oil well.
If transmission gear oil adheres to the exhaust
pipe, wipe it off completely.

2) Replace the gasket with new one, and then tighten
it to the specified torque.
Tightening torque:
5MT
70 Nm (7.1 kgf-m, 51.6 ft-lb)
6MT (Oil pan side):
44 Nm (4.5 kgf-m, 32.5ft-lb)
6MT (Clutch housing side):
70 Nm (7.1 kgf-m, 51.6 ft-lb)
3) Fill transmission gear oil through the oil level
gauge hole up to the upper point of level gauge.
NOTE:
Each oil manufacturer has its base oil and additives.
Thus, do not mix two or more brands.

Gear oil capacity:
5MT model
3.5 L (3.7 US qt, 3.1 Imp qt)
6MT model
4.1 L (4.3 US qt, 3.6 Imp qt)

TRS
ToddStratton is offline   Reply With Quote
Old 04-02-2004, 01:27 PM   #3
h2o
Scooby Specialist
 
Member#: 7946
Join Date: Jun 2001
Location: ROC -> Republic of California
Vehicle:
94/9 MX-5/Fit
ZoomZoom/VTEC Kick'in Y0!

Default

Thank you very much, I will try it out
h2o is offline   Reply With Quote
Old 04-02-2004, 02:16 PM   #4
jpimienta
Scooby Newbie
 
Member#: 7457
Join Date: Jun 2001
Location: Miami, FL
Default Trans Fluid

Another question related to this?

When I had a WRX I replaced the trans and diff fluid to Redline 75w90 NS.

Will this work also for the STI. I don't remember where I heard that the stock STI fluid is better than the Redline one.

JP
jpimienta is offline   Reply With Quote
Old 04-02-2004, 11:30 PM   #5
mr2guru
Scooby Specialist
 
Member#: 10334
Join Date: Sep 2001
Location: St. Louis
Vehicle:
91 RX7 LSx swap
'09 CC 3.6 4motion

Default

also drive around a little and re-check the fluid a few times....it takes a while circulate and stabilize.
mr2guru is offline   Reply With Quote
Old 04-12-2004, 11:04 PM   #6
kinger
Scooby Newbie
 
Member#: 49328
Join Date: Nov 2003
Location: Iowa
Vehicle:
2004 WRB/Gold STI

Default

What did you end up using for fluid? I keep hearing about about the 5MT trans fluids but nothing relating to the STI with the front LSD.

Also from the above instructions it has two seperate drains but fills through the same hole? Is that correct?
kinger is offline   Reply With Quote
Old 04-13-2004, 02:28 AM   #7
mr2guru
Scooby Specialist
 
Member#: 10334
Join Date: Sep 2001
Location: St. Louis
Vehicle:
91 RX7 LSx swap
'09 CC 3.6 4motion

Default

NEO RHD

Fills through dipstick
mr2guru is offline   Reply With Quote
Old 04-13-2004, 02:37 AM   #8
Rev1
Scooby Specialist
 
Member#: 51240
Join Date: Dec 2003
Chapter/Region: MWSOC
Location: Chicago
Vehicle:
08 Lexus IS350
Black

Default

Use a long neck flexible funnel and be careful not to spill oil.

I dripped some on the downpipe and I'm having a hard time getting rid of the rotten onion smell...

4.1 quarts of Motul Gear 300 75W-90 here.
Rev1 is offline   Reply With Quote
Old 04-13-2004, 09:14 AM   #9
kinger
Scooby Newbie
 
Member#: 49328
Join Date: Nov 2003
Location: Iowa
Vehicle:
2004 WRB/Gold STI

Default

Quote:
Originally posted by STi_Thunder
Use a long neck flexible funnel and be careful not to spill oil.

I dripped some on the downpipe and I'm having a hard time getting rid of the rotten onion smell...

4.1 quarts of Motul Gear 300 75W-90 here.
How do you like it? On the stock fluid I notice that my synchro's sometimes block me on the 1-2 or 2-1 shift and I'm thinking its because of the lack of friction modifiers?
kinger is offline   Reply With Quote
Old 04-13-2004, 09:19 AM   #10
kinger
Scooby Newbie
 
Member#: 49328
Join Date: Nov 2003
Location: Iowa
Vehicle:
2004 WRB/Gold STI

Default

Quote:
Originally posted by mr2guru
NEO RHD

Fills through dipstick
Do you run this in your rear diff as well?
kinger is offline   Reply With Quote
Old 04-13-2004, 12:49 PM   #11
Rev1
Scooby Specialist
 
Member#: 51240
Join Date: Dec 2003
Chapter/Region: MWSOC
Location: Chicago
Vehicle:
08 Lexus IS350
Black

Default

Quote:
Originally posted by kinger
How do you like it? On the stock fluid I notice that my synchro's sometimes block me on the 1-2 or 2-1 shift and I'm thinking its because of the lack of friction modifiers?
1-2 shifts are much smoother when cold (coldest in the last 2 weeks has been 27F) and shifting all other gears as well.

2-1 as well.
Rev1 is offline   Reply With Quote
Old 04-26-2004, 02:42 AM   #12
jikhead
Scooby Newbie
 
Member#: 32535
Join Date: Feb 2003
Location: Maumelle, Arkansas
Vehicle:
2009 Nissan 370Z
Monterey Blue

Default

I run Mobil synthetic gear oil and change about every 10,000. Don't forget to wipe off the drain plugs real good. There will be clumps of metal shavings stuck to the magnets.
jikhead is offline   Reply With Quote
Old 05-04-2004, 07:34 PM   #13
1WRX2NV
Scooby Specialist
 
Member#: 17110
Join Date: Apr 2002
Location: San Jose, CA
Vehicle:
02 wrx sedan
midnight black pearl

Default

Hey guys, so take out both plugs? then when you fill it throught the dipstick hole...it will fill everything...right?

I have changed my 6 speed fluid once before...but only opened the smaller plug...so I want to do it right this time.

Please advise.

thanks
-freddie
1WRX2NV is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Will to pay someone to change my tranny and rear diff fluid JeffyLube SCIC Private Classifieds 33 09-10-2009 06:57 AM
Willing to pay someone to change my tranny and rear diff fluid JeffyLube Service & Maintenance 5 09-05-2009 06:23 PM
How do I know when to change the tranny and rear diff fluids? Malasubidude Newbies & FAQs 7 08-20-2008 05:34 PM
Getting ready for trans and rear diff fluid change, need recommendations BGPKR Transmission (AT/MT) & Driveline 8 03-11-2008 02:29 AM
How to change rear and front diff. fluids? skyredrex Service & Maintenance 1 01-05-2004 04:30 PM


All times are GMT -4. The time now is 10:38 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.