Manual Trans./Diff. Fluid Change.?. - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

westmansweed · 07-05-2015, 08:52 PM

i have a 2015 BRZ, i bought new last Aug. and it has about 9k on it.
Should i change the trans & diff. fluid with Motul 300 that i bought.?.

D_Thissen · 07-05-2015, 09:19 PM

Sure why not? You have it, may as well use it.

JozhGoober · 07-06-2015, 10:50 AM

Why would you buy the Motul 300 unless you were going to use it?

mav1178 · 07-06-2015, 11:43 AM

I really think you should lay off whatever you were smoking before working on your car.

NyC Zn6 · 07-06-2015, 11:53 AM

Obviously he is going to use it lol. I'm guessing he just wanted to know if 9k miles is the time to change it.

504 · 07-07-2015, 07:01 AM

Euro7R · 07-07-2015, 11:36 PM

I change my fluids more often that I should. I don't even bother following the maintenance schedule.

aegisdrgn · 07-08-2015, 12:45 AM

Quote:

Originally Posted by 504

^^^^^^THIS^^^^^^

Donbrz · 07-08-2015, 03:06 AM

Quote:

Originally Posted by westmansweed

i have a 2015 BRZ, i bought new last Aug. and it has about 9k on it.
Should i change the trans & diff. fluid with Motul 300 that i bought.?.

Prob depends on how you drive and shifting. Have 2015 BRZ manual and changed at 7k. Significant impact on shifting smoothness. Had some metal shavings on magnetic drain plug for differential fluid, but not like others I have seen, that waited until 25-30k to swap fluids. Fluids smelled as bad as warned so be well ventilated.

Naco · 07-10-2015, 02:07 AM

Quote:

Originally Posted by Donbrz

Prob depends on how you drive and shifting. Have 2015 BRZ manual and changed at 7k. Significant impact on shifting smoothness. Had some metal shavings on magnetic drain plug for differential fluid, but not like others I have seen, that waited until 25-30k to swap fluids. Fluids smelled as bad as warned so be well ventilated.

Just did the diff today and holy hell does the factory stuff stink.

Dumped mine out at 5K and it was still reddish and had only a little bit of gunk on the drain plug. Doing the trans on my next day off so we'll see what we find there.

l0aded · 07-11-2015, 08:59 PM

When are you supposed to change trans and diff fluids?

swarb · 07-11-2015, 09:35 PM

Quote:

Originally Posted by l0aded

When are you supposed to change trans and diff fluids?

AZP Installs · 07-15-2015, 07:24 AM

On a street driven car 30k interval for trans/diffy fluid is a good number to work off of if you are using a full synthetic like Motul Gear 300. On our Project BRZ and Spec86 Cup race car we generally will change the fluids at the beginning of track season on the Spec86 Cup car and for the Project BRZ Street/Track car we change it at the beginning and end of the track season.

The Motul Gear 300 has served us well over the years with smooth engagement and not having any issues in our transmissions. We've used it in 100s of BRZ/FRS, some of them hitting nearly 100K miles at this point.

We also offer (4) Liters (enough for Trans and Diffy) for $85 shipped if anyone is in need of it. http://store.azpparts.com/fluids/motul-gear-300-75w90/

-mike

yomny · 07-15-2015, 08:02 AM

I changed mine earlier on to rid of the break in stuff and any metal shaving. Could be stupid but I feel better. Used motul 300 as well, then redline after a clutch install. I prefer the redline. If I had to do it again id use own stuff and call it a day, specially if you're going for short intervals.

07-05-2015, 08:52 PM	#1
westmansweed PULL OUT Join Date: Aug 2014 Drives: 2015 Subaru BRZ Premium Space Grey Location: Chicago Suburbia Posts: 4 Thanks: 0 Thanked 1 Time in 1 Post Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Manual Trans./Diff. Fluid Change.?. i have a 2015 BRZ, i bought new last Aug. and it has about 9k on it. Should i change the trans & diff. fluid with Motul 300 that i bought.?.

07-05-2015, 09:19 PM	#2
D_Thissen Senior Member Join Date: Jan 2014 Drives: '13 Argento FR-S (Sold) Location: Ontario Posts: 2,126 Thanks: 3,209 Thanked 1,439 Times in 855 Posts Mentioned: 19 Post(s) Tagged: 2 Thread(s)	Sure why not? You have it, may as well use it. __________________ My FR-S Build IG: dthissen

07-15-2015, 08:02 AM	#14
yomny Senior Member Join Date: Jul 2012 Drives: 2013 FRS Whiteout Location: MIA Posts: 1,545 Thanks: 557 Thanked 469 Times in 340 Posts Mentioned: 33 Post(s) Tagged: 5 Thread(s)	I changed mine earlier on to rid of the break in stuff and any metal shaving. Could be stupid but I feel better. Used motul 300 as well, then redline after a clutch install. I prefer the redline. If I had to do it again id use own stuff and call it a day, specially if you're going for short intervals. __________________ GTX2867R, moto-tuned , tomei op , motiv fp , Invidia Q300 ti , Rota titan 17x9 +42 , nt555 255/40 , ST coilovers w/cascam , Hotchkis sways

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07-06-2015, 10:50 AM	#3
JozhGoober Member Join Date: Oct 2013 Drives: 2020 718 GT4, 2013 FR-S (Turbo) Location: Spangdahlem, Germany Posts: 59 Thanks: 7 Thanked 37 Times in 21 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Why would you buy the Motul 300 unless you were going to use it?

07-06-2015, 11:43 AM	#4
mav1178 Senior Member Join Date: Apr 2013 Drives: 2005 Toyota Camry Location: 91745 Posts: 6,562 Thanks: 493 Thanked 6,093 Times in 3,029 Posts Mentioned: 95 Post(s) Tagged: 3 Thread(s)	I really think you should lay off whatever you were smoking before working on your car.

07-06-2015, 11:53 AM	#5
NyC Zn6 Senior Member Join Date: Apr 2013 Drives: 10 Series #974 6m/t Location: NYC Posts: 1,956 Thanks: 1,357 Thanked 1,141 Times in 669 Posts Mentioned: 6 Post(s) Tagged: 2 Thread(s)	Obviously he is going to use it lol. I'm guessing he just wanted to know if 9k miles is the time to change it.

07-07-2015, 07:01 AM	#6
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07-07-2015, 11:36 PM	#7
Euro7R Senior Member Join Date: Feb 2013 Drives: 2013 Subaru BRZ Location: Canada Posts: 132 Thanks: 13 Thanked 23 Times in 18 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I change my fluids more often that I should. I don't even bother following the maintenance schedule.

07-15-2015, 07:24 AM	#13
AZP Installs Join Date: Oct 2011 Drives: '11 STi->'14 BRZ \| '14 Touareg TDi Location: Kenilworth, NJ Posts: 1,269 Thanks: 359 Thanked 557 Times in 371 Posts Mentioned: 49 Post(s) Tagged: 0 Thread(s)	On a street driven car 30k interval for trans/diffy fluid is a good number to work off of if you are using a full synthetic like Motul Gear 300. On our Project BRZ and Spec86 Cup race car we generally will change the fluids at the beginning of track season on the Spec86 Cup car and for the Project BRZ Street/Track car we change it at the beginning and end of the track season. The Motul Gear 300 has served us well over the years with smooth engagement and not having any issues in our transmissions. We've used it in 100s of BRZ/FRS, some of them hitting nearly 100K miles at this point. We also offer (4) Liters (enough for Trans and Diffy) for $85 shipped if anyone is in need of it. http://store.azpparts.com/fluids/motul-gear-300-75w90/ -mike

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