CCN: How To Replace Every Fluid On Your GX Like a Pro!
@Acrad Can you please Sticky this or put the link into the official FAQ maintenance section. Its the most comprehensive one stop shop for all the fluids bumper to bumper, except missing how to add washer fluid (no biggie)
Thank you
Thank you
Last edited by Framestead; Nov 23, 2025 at 11:34 AM.
Great post, just to make an important observation, the Transfer Case Oil which oem is the Toyota 75W LF can not be replaced with the 75w-85 or 75w-90 that AMD says on the video, the only suitable oil non OEM that I have found that cna be used is the Ravenol 75W MTF-3 (https://www.ravenolamerica.com/passe...ravenol-mtf-3/) The 75-85 or 75-90 from amsoil can onnly be used in the front and rear differentials but not the transfer case.
As for the transmission, In my personal case and just because i am very picky on maintenance, whenever i change my transmission fluid i not only drain it and fill but i remove my transmission fiilter (Strainer) part code 35330-60070 and the O-ring that the strainer uses part code 90301-31014 then fill again.
Cheers!
As for the transmission, In my personal case and just because i am very picky on maintenance, whenever i change my transmission fluid i not only drain it and fill but i remove my transmission fiilter (Strainer) part code 35330-60070 and the O-ring that the strainer uses part code 90301-31014 then fill again.
Cheers!
Last edited by guzzy92fs; Nov 26, 2025 at 07:17 AM.
Great post, just to make an important observation, the Transfer Case Oil which oem is the Toyota 75W LF can not be replaced with the 75w-85 or 75w-90 that AMD says on the video, the only suitable oil non OEM that I have found that cna be used is the Ravenol 75W MTF-3 (https://www.ravenolamerica.com/passe...ravenol-mtf-3/) The 75-85 or 75-90 from amsoil can onnly be used in the front and rear differentials but not the transfer case.
https://www.redlineoil.com/mt-lv-70w75w
https://www.amsoil.com/p/amsoil-5w-3...mtf/?zo=515729
heard this rec by amsoil for the TC. Helps reduce the clunk noise when engaging/smoother.
Others include
some run 75w90 up front, 75w110 rear diff for towing/high heat applications.
Maxlife in the atf and ps
Brake fluid any brand dot
heard this rec by amsoil for the TC. Helps reduce the clunk noise when engaging/smoother.
Others include
some run 75w90 up front, 75w110 rear diff for towing/high heat applications.
Maxlife in the atf and ps
Brake fluid any brand dot
https://www.amsoil.com/p/amsoil-5w-3...mtf/?zo=515729
heard this rec by amsoil for the TC. Helps reduce the clunk noise when engaging/smoother.
Others include
some run 75w90 up front, 75w110 rear diff for towing/high heat applications.
Maxlife in the atf and ps
Brake fluid any brand dot
heard this rec by amsoil for the TC. Helps reduce the clunk noise when engaging/smoother.
Others include
some run 75w90 up front, 75w110 rear diff for towing/high heat applications.
Maxlife in the atf and ps
Brake fluid any brand dot
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If you need it, here are the parts I used:
https://www.lexuspartsnow.com/parts/...330-60070.html
https://www.lexuspartsnow.com/parts/...301-31014.html
https://www.lexuspartsnow.com/parts/...168-60010.html
And of course Toyota WS Fluid, purchased two jugs for the job, like 1.5 quarters left
Last edited by guzzy92fs; Feb 21, 2026 at 07:15 PM.
Motor oil and gear oil viscosities aren't rated on the same scale.
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mjones1160
GX - 1st Gen (2003-2009)
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Aug 25, 2014 05:34 PM











