How To: Change your Transmission Fluid (with pics) - Page 2

V8Huntr · 04-17-2007, 05:06 AM

Yea I was thinkning about doing that soon. I'll defintely make another write up when I do it if you guys want

pt518sti · 04-17-2007, 07:34 AM

Thanks for the write up. Reminded me that I'm probably overdue for this.

importfanatic17 · 04-26-2007, 08:15 PM

Why is it that when I told the guys at the Subaru dealership about the two spots to drain the fluid, they had no idea that there were two. They only gave me the washer for the pan and had to special order the other one because they have NEVER stocked it.

V8Huntr · 04-28-2007, 04:24 PM

Same thing happened to me. The guy had no clue about the other one and had to order it. He said "Well, we do trans fluid changes here all the time and we've never stocked that one before". The guy said they've never even heard about it. Makes you wonder.....

CenCali07STI · 04-29-2007, 07:32 PM

Since you fill in only one spot and drain in two spots does that mean that tranny, rear diff and front diff all take the same fluid? And what is the GL-5 rating that quicksilverSTI is talking about?

speedstyle · 04-30-2007, 05:10 AM

Quote:

Originally Posted by CenCali07STI

Since you fill in only one spot and drain in two spots does that mean that tranny, rear diff and front diff all take the same fluid? And what is the GL-5 rating that quicksilverSTI is talking about?

To answer your questions...

Tranny and front diff use the same oil pan and both require an oil with a GL-5 rating (see below).

Rear Diff is separate and requires LSD Gear Oil (STi specific) such as found on this page http://www.subaruparts.com/catalog/?section=366

The following excerpt regarding GL-5 rating was taken form the API (American Petroleum Institute) PUBLICATION 1560
"API GL-5
The designation API GL-5 denotes lubricants intended for gears, particularly hypoid (see note) gears, in axles operating under various combinations of high-speed/shock load and low-speed/high-torque conditions.
Note: Frictional requirements for axles equipped with limited-slip differentials are normally defined by the axle manufacturer."

Hopefully this answers your questions and doesn't confuse you more.

V8Huntr · 04-30-2007, 05:35 AM

Yea, the front diff and trans share the same oil. The rear diff uses LSD specific oil. Speedstyle pretty much summed it up.

CenCali07STI · 04-30-2007, 04:52 PM

cool thanks. SO should be the same even for an 07 like mine that changed to Torsen style differential rather than helical? Or should I do some research lol.

speedstyle · 04-30-2007, 06:58 PM

Research is always a good thing. Everbody seems to have different opinions when it comes to stuff like which fluids to use so I always consult my service and owners manuals before doing anything.

jomotopia · 05-01-2007, 09:39 AM

nice write up. i did this not too long ago and a funnel like this makes the filling it a breeze.

Quote:

Originally Posted by SubyFi

Cool write up.

You need one of these funnels next time:

question: is there any potential problem with having it filled over the full mark? mine is just a little over when cold and i didn't want to try and drain just a tiny bit so i left it and haven't noticed any issues.

**409industries** · 05-03-2007, 01:28 PM

Nice write up, you used my picture from forever ago!

V8Huntr · 05-04-2007, 12:41 PM

Haha I know, I forgot to take a pic of it and I didn't feel like putting the car back up in the air again.

JKonquer · 05-09-2007, 12:35 AM

how often are you suppose to change the tranny fluid and rear diff fluid?

supermarkus · 05-09-2007, 01:16 AM

I just go by the suggested intervals in the owners manual.

H4N · 05-28-2007, 05:54 PM

bump.... for a quick questions... do you read the tranny dip stick when the car is on or off? i came from doing changes on autos and you had to read it while on.

04-17-2007, 05:06 AM	#16
V8Huntr Spec C Club Car: 04' WRB STi Fav Mod: TBE Location: Allentown, PA Posts: 1,515 Join Date: Sep 2006 Trader Rating: (0)	Re: How To: Change your Transmission Fluid (with pics) Yea I was thinkning about doing that soon. I'll defintely make another write up when I do it if you guys want This ad is not endorsed by this member. Please register or login to hide this ad.

04-17-2007, 07:34 AM	#17
pt518sti S204 Racer Car: 2005 White/Gold STi Fav Mod: TD06-20G/Tein Flex coilovers Location: New York Posts: 2,909 Join Date: May 2005 Trader Rating: (8)	Re: How To: Change your Transmission Fluid (with pics) Thanks for the write up. Reminded me that I'm probably overdue for this.

04-26-2007, 08:15 PM	#18
importfanatic17 Spec C Club Car: '05 Aspen White STi Fav Mod: EQ Tuning tune Location: Sacramento, Ca Posts: 1,650 Join Date: Apr 2007 Trader Rating: (5)	Re: How To: Change your Transmission Fluid (with pics) Why is it that when I told the guys at the Subaru dealership about the two spots to drain the fluid, they had no idea that there were two. They only gave me the washer for the pan and had to special order the other one because they have NEVER stocked it.

04-28-2007, 04:24 PM	#19
V8Huntr Spec C Club Car: 04' WRB STi Fav Mod: TBE Location: Allentown, PA Posts: 1,515 Join Date: Sep 2006 Trader Rating: (0)	Re: How To: Change your Transmission Fluid (with pics) Same thing happened to me. The guy had no clue about the other one and had to order it. He said "Well, we do trans fluid changes here all the time and we've never stocked that one before". The guy said they've never even heard about it. Makes you wonder.....

04-29-2007, 07:32 PM	#20
CenCali07STI Professional STI Racer Car: 07 STI SWP Fav Mod: Custom built TBE FTW!!! Location: Modesto, California Posts: 820 Join Date: Feb 2007 Trader Rating: (1)	Re: How To: Change your Transmission Fluid (with pics) Since you fill in only one spot and drain in two spots does that mean that tranny, rear diff and front diff all take the same fluid? And what is the GL-5 rating that quicksilverSTI is talking about?

04-30-2007, 05:35 AM	#22
V8Huntr Spec C Club Car: 04' WRB STi Fav Mod: TBE Location: Allentown, PA Posts: 1,515 Join Date: Sep 2006 Trader Rating: (0)	Re: How To: Change your Transmission Fluid (with pics) Yea, the front diff and trans share the same oil. The rear diff uses LSD specific oil. Speedstyle pretty much summed it up.

04-30-2007, 04:52 PM	#23
CenCali07STI Professional STI Racer Car: 07 STI SWP Fav Mod: Custom built TBE FTW!!! Location: Modesto, California Posts: 820 Join Date: Feb 2007 Trader Rating: (1)	Re: How To: Change your Transmission Fluid (with pics) cool thanks. SO should be the same even for an 07 like mine that changed to Torsen style differential rather than helical? Or should I do some research lol.

04-30-2007, 06:58 PM	#24
speedstyle Junior STI Driver Car: 05 CGM WRX STi Fav Mod: all Location: Grand Forks, ND Posts: 159 Join Date: May 2005 Trader Rating: (2)	Re: How To: Change your Transmission Fluid (with pics) Research is always a good thing. Everbody seems to have different opinions when it comes to stuff like which fluids to use so I always consult my service and owners manuals before doing anything.

05-03-2007, 01:28 PM	#26
409industries DirtyImpreza.com Car: 04 STi, 01 RS Fav Mod: ACPT CFDS Location: Southern California Posts: 665 Join Date: Dec 2004 Trader Rating: (3)	Re: How To: Change your Transmission Fluid (with pics) Nice write up, you used my picture from forever ago!

05-04-2007, 12:41 PM	#27
V8Huntr Spec C Club Car: 04' WRB STi Fav Mod: TBE Location: Allentown, PA Posts: 1,515 Join Date: Sep 2006 Trader Rating: (0)	Re: How To: Change your Transmission Fluid (with pics) Haha I know, I forgot to take a pic of it and I didn't feel like putting the car back up in the air again.

05-09-2007, 12:35 AM	#28
JKonquer Spec C Club Car: AW 05 WRX STi Fav Mod: Recaro Racing Seats Location: CA-burbank and palm sprin Posts: 2,115 Join Date: Sep 2004 Trader Rating: (2)	Re: How To: Change your Transmission Fluid (with pics) how often are you suppose to change the tranny fluid and rear diff fluid?

05-09-2007, 01:16 AM	#29
supermarkus Spec C Club Car: 08 STi, SSM Location: Edmonds Washington Posts: 1,441 Join Date: Dec 2005 Trader Rating: (0)	Re: How To: Change your Transmission Fluid (with pics) I just go by the suggested intervals in the owners manual.

05-28-2007, 05:54 PM	#30
H4N The Next Petter Solberg Car: 05 STi Fav Mod: EWG, T 2'S Location: Mass-hole Posts: 919 Join Date: Mar 2005 Trader Rating: (6)	Re: How To: Change your Transmission Fluid (with pics) bump.... for a quick questions... do you read the tranny dip stick when the car is on or off? i came from doing changes on autos and you had to read it while on. This ad is not endorsed by this member. Please register or login to hide this ad.