Welcome to the North American Subaru Impreza Owners Club Friday November 28, 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 Subaru Models > Baja Forum

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 12-04-2009, 04:30 PM   #1
kev m
Scooby Specialist
 
Member#: 128582
Join Date: Oct 2006
Location: Eastern, PA
Vehicle:
2010 Impreza 2.5 Wgn
2011 Nissan Juke

Default Sport Manual Trans and Diff - Fluid Change

I'm at about 33k miles now in the 3 years I've owned the my Sport M/T Baja.

Looking over the maintenance schedules I've done everything required so far, including brake fluid and coolant changes.

Now if I'm reading the schedules right there is no recommended replacement interval for the Transmission and Rear Diff oils under normal duty service, but there are 15k mile replacement intervals under severe duty.

Traditionally severe duty services are usually about 1/2 of normal.

So I was thinking of replacing both just for good measure.

Thoughts on that? Too conservative, no big deal, I'm nutz you guys have all changed it already?

I was just going to go with the M1 75/90 (not to start an argument over that either).

Thoughts?
kev m is offline   Reply With Quote
Old 12-04-2009, 05:03 PM   #2
subeman90
Scooby Specialist
 
Member#: 65681
Join Date: Jul 2004
Chapter/Region: MAIC
Location: Akron PA
Vehicle:
13 XV Limited
gray

Default

my dealer said to do the rear diff and let the trans go. So i did the rear diff at 30k (along with the other 30k stuff) and I kept on driving. I am at 44k and my fluid still looks new. I am going to revist this at 50k and if it is still good then 60k is most likely where I will draw the line.

just my 2 cents.
subeman90 is offline   Reply With Quote
Old 12-04-2009, 07:32 PM   #3
moonzie
Scooby Specialist
 
Member#: 128537
Join Date: Oct 2006
Chapter/Region: MWSOC
Location: Bloomington, Indiana
Vehicle:
2004 Baja Turbo
Red/Silver

Default

Quote:
Originally Posted by subeman90 View Post
I am at 44k and my fluid still looks new.
You know, at around 120k miles (?..) or so.. I had to replace my radiator. Up until then I had been keeping check on my ATF fluid levels/smell/color by the sticj. It looked fine and smelled fine - like new!

Now, upon removing the radiator I had to disconnect the ATF cooler lines. When I did so, a brown icky sludge drooled out. Yuck!! Definitly not the same quality of liquid I was seeing on the stick.

Fluid + filter was promptly changed that week. Not flushed, only changed. If I had 60k miles or less and I had the extra cash I'd go through with a flush (flush will run you twice the amount in fluid costs, and they ain't cheap @ around $10 a quart! what is it - 8 quarts? 11? yeah. ouch)

Just some advice. My turbo'd 2.5l 4EAT tranny was fine before and after.

Personally I think you're going overboard. I'd consider changing them after 60k miles. Somewhere between 60-100k miles. But that's just me.
moonzie is offline   Reply With Quote
Old 12-05-2009, 10:41 AM   #4
kev m
Scooby Specialist
 
Member#: 128582
Join Date: Oct 2006
Location: Eastern, PA
Vehicle:
2010 Impreza 2.5 Wgn
2011 Nissan Juke

Default

Quote:
Originally Posted by twheats1 View Post
On my turbo I change the trans and diff every 30k.

On the recommendation of the tech who rebuilt my trans, I am now using Amsoil. I had been using Royal Purple.

Does the Sport 5sd need the large torx bit for the drain plug?
Thanks for the data point - of course, I suspect the NA motor is a heck of a lot easier on the gearcase and diff

Dunno on the torx bit haven't crawled under to check yet, you know what size, I've got some pretty big Torx head monster bits in my kit?


Quote:
Originally Posted by moonzie View Post
Personally I think you're going overboard. I'd consider changing them after 60k miles. Somewhere between 60-100k miles. But that's just me.
That's 2 votes to leave the trans alone - 1 vote to change trans?

2 votes to change diff - 1 vote to leave diff alone?

Damn, I don't even NEED a lift to change the diff, I'd feel stupid pulling it in JUST for that.

Thanks for the thoughts guys, leaving soon.
kev m is offline   Reply With Quote
Old 12-04-2009, 05:59 PM   #5
kev m
Scooby Specialist
 
Member#: 128582
Join Date: Oct 2006
Location: Eastern, PA
Vehicle:
2010 Impreza 2.5 Wgn
2011 Nissan Juke

Default

Thanks for that input.

Turns out I'm heading to my little bros place tomorrow - about 100 miles each way so I don't go often.

And with the forecast calling for rain and some snow, I'm figuring on taking the Baja instead of one of the bikes.

Why is this significant - cause he's got a 6 car detached garage with lift. See where I'm going with this?

So I have to decide if I want to change one or both of those fluids.

I guess I could CHECK the trans fluid and see what it "looks" like, not that it would tell me much if it's clear - doesn't mean it's not starting to break-down viscosity wise.

But sounds like 1 vote - DO THE DIFF! (easy enough, hell, I'll feel guilty throwing it on the lift for JUST that.

Thanks for the data point though.

Anyone else?
kev m is offline   Reply With Quote
Old 12-04-2009, 06:47 PM   #6
twheats1
Scooby Newbie
 
Member#: 147722
Join Date: Apr 2007
Chapter/Region: MWSOC
Location: Rockford, IL
Vehicle:
11 Rug
00 R 1100RS

Default

On my turbo I change the trans and diff every 30k.

On the recommendation of the tech who rebuilt my trans, I am now using Amsoil. I had been using Royal Purple.

Does the Sport 5sd need the large torx bit for the drain plug?
twheats1 is offline   Reply With Quote
Old 12-05-2009, 11:00 AM   #7
twheats1
Scooby Newbie
 
Member#: 147722
Join Date: Apr 2007
Chapter/Region: MWSOC
Location: Rockford, IL
Vehicle:
11 Rug
00 R 1100RS

Default

^^ IIRC the Torx is a T70. I had to order it as it was not available locally.
twheats1 is offline   Reply With Quote
Old 12-05-2009, 11:49 AM   #8
kev m
Scooby Specialist
 
Member#: 128582
Join Date: Oct 2006
Location: Eastern, PA
Vehicle:
2010 Impreza 2.5 Wgn
2011 Nissan Juke

Default

Quote:
Originally Posted by twheats1 View Post
^^ IIRC the Torx is a T70. I had to order it as it was not available locally.
Crap, I THINK my set ends at T-60 - hopefully it's a hex on the NA M/T - or my final decision is REAL easy, I'll wait a little longer
kev m 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
STi Trans. & Diff. Fluid Change i_drank_what Service & Maintenance 81 11-11-2014 02:46 AM
about to do a 6mt tranny and diff fluid change...where to get fluid? OneArmedScissor Texas Impreza Club Forum -- TXIC 9 10-21-2007 02:07 AM
changing the trans and diff. fluids subietuner Service & Maintenance 5 06-21-2006 07:46 PM
Trans and diff fluid swap what do ya'll have AndyM Mid West Subaru Owners Club Forum -- MWSOC 3 05-07-2002 07:17 PM


All times are GMT -4. The time now is 10:53 PM.


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.