Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - View Single Post - So 2017+ models CAN use GL-5 fluids in the tranny...

Seiryuu · 03-26-2019, 09:32 AM

I want to change my transmission fluid so I started to do my homework on this and went through countless transmission fluid threads of recommendations and people warning against using GL-5... but they were all pre-2017.

An AMSOIL rep (through a clerk at an auto store) insisted that the AMSOIL 75W90 Severe Gear GL-5 will work for my BRZ and will not let me special order their regular manual transmission fluid.

I was going through my owner's manual and this was stated under Manual Transmission, "Other gear oil that meets APL GL-3, GL-4, or GL-5 and SAE 75W-90 specifications."

So... I guess Subaru updated the '17+ transmission to allow for GL-5 usage now?

03-26-2019, 09:32 AM	#1
Seiryuu Senior Member Join Date: Feb 2018 Drives: ZC6 Location: PNW Posts: 110 Thanks: 38 Thanked 32 Times in 27 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	So 2017+ models CAN use GL-5 fluids in the tranny... I want to change my transmission fluid so I started to do my homework on this and went through countless transmission fluid threads of recommendations and people warning against using GL-5... but they were all pre-2017. An AMSOIL rep (through a clerk at an auto store) insisted that the AMSOIL 75W90 Severe Gear GL-5 will work for my BRZ and will not let me special order their regular manual transmission fluid. I was going through my owner's manual and this was stated under Manual Transmission, "Other gear oil that meets APL GL-3, GL-4, or GL-5 and SAE 75W-90 specifications." So... I guess Subaru updated the '17+ transmission to allow for GL-5 usage now?