Change your manual transmission fluid ASAP!!!

[Ingen]

Originally Posted by Kostamojen

The trans gaskets you can get away with not replacing them as they are not crush washers. Diff you have to.

And you only need two jack stands, you just have to lift and lower the car more often.

Awesome. I could use the extra jack stands anyway for whenever exhaust time comes That said, any thoughts on the part #s for the diff ones? Or do I just go to the subie dealer and say I need BRZ rear diff crush washers?

[lexusb3]

Finally changed mine 75w-90 full Syn and it feels nice !

[Anduz]

been very keen to do this, shifting into second gear/ third gear especially when cold is a painful task....the sound makes me cringe.

But have been told changing the tranny oil from the factory viscosity will void warranty.... is it worth it to void warranty on the tranny?

[lexusb3]

whats warranty? ^^ lol jk jk, idk how they would void the warranty? thats like putting windex in your washer fluid would they not cover the wiper system if it breaks etc etc, just saying i dont think they would void it based on fluid as long as there are no "modifications"

[lazyluka]

Diff crush washer is also re-usable. Had no issues with my change.

The engine crush washer on the other hand is an always replace item.

[Suberman]

Originally Posted by lexusb3

whats warranty? ^^ lol jk jk, idk how they would void the warranty? thats like putting windex in your washer fluid would they not cover the wiper system if it breaks etc etc, just saying i dont think they would void it based on fluid as long as there are no "modifications"

Using lubricants not meeting the manufacturers specification voids the warranty on the affected parts. Period. You may not have to use the fluid supplied by the manufacturer but it has to be exactly the same spec fluid. Good luck.

[chulooz]

Originally Posted by Suberman

Using lubricants not meeting the manufacturers specification voids the warranty on the affected parts. Period. You may not have to use the fluid supplied by the manufacturer but it has to be exactly the same spec fluid. Good luck.

I dont know how it is in Canada, but in the USA the dealership has to prove the part caused the failure. If everyone gets 2nd gear synchro problems with stock fluid, and youve changed yours they cannot blame the aftermarket fluid, especially if its within spec.

[DrDuquette]

I assume you use a floor jack to lift the car. I've always lifted my other cars from the sides where the recommend for the jack in the trunk. BUT, I started doing this with my floor jack and got worried by how weak those areas felt. What are your recommendations for floor jack lift points.

And of course with a little searching. I found my stinking answer.

[lexusb3]

Originally Posted by Suberman

Using lubricants not meeting the manufacturers specification voids the warranty on the affected parts. Period. You may not have to use the fluid supplied by the manufacturer but it has to be exactly the same spec fluid. Good luck.

I work for toyota corp I guess I just got use to them taking care of me lol sorry

[AZP Installs]

You want GL4 for the Transmission and GL5 for the Rear Diffy.

For Amsoil you'll need 2 different fluids as they don't sell a GL4/GL5.

Motul Gear 300 is both GL4 and GL5 so it's a one stop shopping for that. We sell Motul at phenomenal pricing, if anyone needs it just click on our parts site in our signature!

-Mike Paisan


11+ Years Maintaining, Modifying and Educating TriState Subaru Enthusiasts.
Now we have an Online Catalog where you can purchase Parts! AZPParts.com
Like us on Facebook! | E-mail: sales@azpinstalls.com | 725 Fairfield Ave | Kenilworth, NJ 07033 | 908.248.AZP1 (2971) |AIM: AZP Installs
"Race Tested, Enthusiast Approved!"

[Kostamojen]

Originally Posted by AZP Installs

You want GL4 for the Transmission and GL5 for the Rear Diffy.

For Amsoil you'll need 2 different fluids as they don't sell a GL4/GL5.

Motul Gear 300 is both GL4 and GL5 so it's a one stop shopping for that. We sell Motul at phenomenal pricing, if anyone needs it just click on our parts site in our signature!

-Mike Paisan


11+ Years Maintaining, Modifying and Educating TriState Subaru Enthusiasts.
Now we have an Online Catalog where you can purchase Parts! AZPParts.com
Like us on Facebook! | E-mail: sales@azpinstalls.com | 725 Fairfield Ave | Kenilworth, NJ 07033 | 908.248.AZP1 (2971) |AIM: AZP Installs
"Race Tested, Enthusiast Approved!"

I would go with the Motul Gear 300 for anyone reading this thread. Does the diff and the trans and its great, I just went my route due to convenience XD

Next time, Motul 300 all the way!

[imom]

Hi... Just want to be clear...you are using Motul Gear 300 for the tranny and differential or are you using Motul Gear LS 300 (limited slip version)?

[OICU812]

Originally Posted by chulooz

I dont know how it is in Canada, but in the USA the dealership has to prove the part caused the failure. If everyone gets 2nd gear synchro problems with stock fluid, and youve changed yours they cannot blame the aftermarket fluid, especially if its within spec.

It's exactly same indeed yes sir.

[DoomsdayJesus]

Just a heads-up, I took may car with less than 6k miles in to the dealer for the rough 4th gear shift. They were just going to flush it but found a lot of metal debris, and ended up replacing the tranny.

I'm going to try to get their approval to swap fluids with something else, because the amount of resistance and debris is unacceptable. But anyone with the grind problems just swapping fluids needs to seriously consider seeing the dealer for a tranny swap first.