Automatic Transmission Fluid Change - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

jmaryt · 12-13-2012, 05:35 PM

just found out froma toyota dealer that the "slush" box
tranny fluid requires a change-out at 100,000 miles initially,and then every 30,000 miles thereafter!.can anyone verify this?..thanks!

86'd · 12-13-2012, 06:02 PM

Given my luck with automatics, I'd change it out a bit sooner for piece of mind. YMMV.

OrbitalEllipses · 12-13-2012, 06:58 PM

Quote:

Originally Posted by 86'd

Given my luck with automatics, I'd change it out a bit sooner for piece of mind. YMMV.

50,000 miles is a good number. My WRX wasn't changed until ~65,000 miles and it was NASTY.

a.beck · 12-13-2012, 09:34 PM

You're not going to hurt it by changing it too often. I'd agree with others saying sooner is better than later.

jmaryt · 12-14-2012, 01:27 AM

thanks for the input! wondering what the manual says! got a feeling
it ain't 100,000 miles for initial dump! dealer 'knows" i am considering the "slush"
and "may" be tryin' to hit me with a s**t storm! i'm with you guys,change should be sooner! anyone know what's in the manual?..thanks!

zoomzoomers · 12-19-2012, 02:57 PM

I haven't checked the manual either, but I recall back in the day my mecahnic always told me to change the AT fluid around 30k miles. But I figure with the advancement in fluid technology these days should have improved that a bit? Maybe 50k miles is a good figure.

JoeBoxer · 12-20-2012, 02:16 AM

Yeah 40-50k should be good, the auto trans is one thing I do recommend sticking with the factory fluid. Do not use any ATF labeled "global" for sure.

zoomzoomers · 12-20-2012, 12:52 PM

So you shouldn't use something from motul or Royal Purple for the AT fluid? Hmm I'll keep that in mind.

JoeBoxer · 12-20-2012, 12:56 PM

Quote:

Originally Posted by zoomzoomers

So you shouldn't use something from motul or Royal Purple for the AT fluid? Hmm I'll keep that in mind.

I'm not going to, however if you end up with much higher than stock hp and torque you may want to use a high performance fluid i just don't know if there is anything compatible.

getbent · 12-20-2012, 07:32 PM

If you want your slushbox to last you should probably change it frequently.

Many of the auto makers with "lifetime" ATF fluids are really only designed for ~100K miles. By that point they are out of warranty and not their problem anymore.

In any slushbox cars I own, I would change every 30K for peace of mind.

Anorexic 86 · 12-22-2012, 04:29 AM

If you plan on doing this yourself... good luck changing it out correctly.

The process is harder than launching nuclear missiles.

I remember reading the instructions and thinking... WTF!!!

IT'S NO JOKE AND NOT AS SIMPLE AS DRAIN AND REFILL!

Check out the online BRZ shop manual listed in the sticky section of this thread for the instructions.

Again... good luck.

JoeBoxer · 12-22-2012, 04:53 AM

Quote:

Originally Posted by Anorexic 86

If you plan on doing this yourself... good luck changing it out correctly.

The process is harder than launching nuclear missiles.

I remember reading the instructions and thinking... WTF!!!

IT'S NO JOKE AND NOT AS SIMPLE AS DRAIN AND REFILL!

Check out the online BRZ shop manual listed in the sticky section of this thread for the instructions.

Again... good luck.

Sounds like the 370z auto trans service, it can only be done at certain temps to check the level or something. Basically good luck getting it done in the summer here unless you drop off the car in the evening so they can do it the next day.

whataboutbob · 02-19-2013, 12:09 AM

I've just been reading up on the AT fluids in our twins. It appears to be hygroscopic. Given that I've been AutoXing my car and done a dyno pull or 3 on it I'm thinking that I want to get it changed. Right now I have just over 20K on the car.

Can some of the more knowledgeable members chime in on what mileage would be best for a change interval?

JoeBoxer · 02-19-2013, 12:45 AM

I plan on doing mine at 30k, its cheap insurance and even if you drive like a grandma i would still do it at 45k. I drive mine pretty hard so changing the rear diff every 12-15k and trans fluid every 30k is a good idea if you plan to keep the car a long time.

This is just my opinion, no real data to back it up. I have been doing parts on the dealership level for 10 years now so i do have a little experience.

12-13-2012, 05:35 PM	#1
jmaryt Banned Join Date: Aug 2012 Drives: 2012 honda civic ex Location: salem,nh. Posts: 1,676 Thanks: 299 Thanked 186 Times in 144 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Automatic Transmission Fluid Change just found out froma toyota dealer that the "slush" box tranny fluid requires a change-out at 100,000 miles initially,and then every 30,000 miles thereafter!.can anyone verify this?..thanks!

12-19-2012, 02:57 PM	#6
zoomzoomers Senior Member Join Date: Nov 2011 Drives: 2013 Subaru SWP BRZ Limited 6AT Location: Darkside Posts: 1,862 Thanks: 526 Thanked 305 Times in 207 Posts Mentioned: 9 Post(s) Tagged: 0 Thread(s)	I haven't checked the manual either, but I recall back in the day my mecahnic always told me to change the AT fluid around 30k miles. But I figure with the advancement in fluid technology these days should have improved that a bit? Maybe 50k miles is a good figure. __________________ Man Law#17:A man in the company of a hot, seductively dressed, woman MUST remain sober enough to fight! MODS: AVO tubes + filter, Cusco (F) strut brace w/ MC brace, Perrin CBE, Subaru OEM trunk tray, Grimmspeed front license re-locator & hood struts and Beatsonic rear cam.

12-20-2012, 12:52 PM	#8
zoomzoomers Senior Member Join Date: Nov 2011 Drives: 2013 Subaru SWP BRZ Limited 6AT Location: Darkside Posts: 1,862 Thanks: 526 Thanked 305 Times in 207 Posts Mentioned: 9 Post(s) Tagged: 0 Thread(s)	So you shouldn't use something from motul or Royal Purple for the AT fluid? Hmm I'll keep that in mind. __________________ Man Law#17:A man in the company of a hot, seductively dressed, woman MUST remain sober enough to fight! MODS: AVO tubes + filter, Cusco (F) strut brace w/ MC brace, Perrin CBE, Subaru OEM trunk tray, Grimmspeed front license re-locator & hood struts and Beatsonic rear cam.

12-20-2012, 07:32 PM	#10
getbent Senior Member Join Date: May 2012 Drives: 2013 FR-S Blue MT Location: Raleigh, NC Posts: 162 Thanks: 4 Thanked 37 Times in 26 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	If you want your slushbox to last you should probably change it frequently. Many of the auto makers with "lifetime" ATF fluids are really only designed for ~100K miles. By that point they are out of warranty and not their problem anymore. In any slushbox cars I own, I would change every 30K for peace of mind. __________________ 2013 Scion FR-S \| 6MT \| UltraMarine

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12-13-2012, 06:02 PM	#2
86'd Senior Member Join Date: Dec 2011 Drives: 2012 WRX Sedan Location: Los Angeles Posts: 511 Thanks: 25 Thanked 97 Times in 55 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Given my luck with automatics, I'd change it out a bit sooner for piece of mind. YMMV.

12-13-2012, 09:34 PM	#4
a.beck Doing it wrong. Join Date: Sep 2012 Drives: BRZ Location: Sydney, Australia Posts: 129 Thanks: 43 Thanked 33 Times in 29 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	You're not going to hurt it by changing it too often. I'd agree with others saying sooner is better than later.

12-14-2012, 01:27 AM	#5
jmaryt Banned Join Date: Aug 2012 Drives: 2012 honda civic ex Location: salem,nh. Posts: 1,676 Thanks: 299 Thanked 186 Times in 144 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	thanks for the input! wondering what the manual says! got a feeling it ain't 100,000 miles for initial dump! dealer 'knows" i am considering the "slush" and "may" be tryin' to hit me with a s**t storm! i'm with you guys,change should be sooner! anyone know what's in the manual?..thanks!

12-20-2012, 02:16 AM	#7
JoeBoxer Senior Member Join Date: Jul 2012 Drives: Whiteout FR-S Location: Arkansas Posts: 4,154 Thanks: 1,666 Thanked 1,627 Times in 997 Posts Mentioned: 72 Post(s) Tagged: 0 Thread(s)	Yeah 40-50k should be good, the auto trans is one thing I do recommend sticking with the factory fluid. Do not use any ATF labeled "global" for sure.

12-22-2012, 04:29 AM	#11
Anorexic 86 Trim the Fat & add Boost Join Date: Jul 2012 Drives: sometimes I fly Location: Earth Posts: 180 Thanks: 48 Thanked 127 Times in 59 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	If you plan on doing this yourself... good luck changing it out correctly. The process is harder than launching nuclear missiles. I remember reading the instructions and thinking... WTF!!! IT'S NO JOKE AND NOT AS SIMPLE AS DRAIN AND REFILL! Check out the online BRZ shop manual listed in the sticky section of this thread for the instructions. Again... good luck.

02-19-2013, 12:45 AM	#14
JoeBoxer Senior Member Join Date: Jul 2012 Drives: Whiteout FR-S Location: Arkansas Posts: 4,154 Thanks: 1,666 Thanked 1,627 Times in 997 Posts Mentioned: 72 Post(s) Tagged: 0 Thread(s)	I plan on doing mine at 30k, its cheap insurance and even if you drive like a grandma i would still do it at 45k. I drive mine pretty hard so changing the rear diff every 12-15k and trans fluid every 30k is a good idea if you plan to keep the car a long time. This is just my opinion, no real data to back it up. I have been doing parts on the dealership level for 10 years now so i do have a little experience.

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