Where are you guys buying your Trans fluid?
Junior Member
Joined: Aug 2012
Posts: 27
Likes: 1
From: Austin, TX
2018 AMG GT-C, 2013 GL550, 2012 E550 Coupe
I'm in the same boat. Spirax is out everywhere, including lubefinder. I saw some people using MOTUL products for both the trans and diff sides. I believe FCP euro says the MOTUL Porsche DCT-F3 is compatible and on another thread here I saw a someone using the MOTUL 300 75-90 for the transfer side (didn't see anywhere that they got confirmation that it's compatible to Spirax though...)
Maybe I've watched Alex on LSC too much, but I wish AMSOIL would either confirm their fluids would work or come out with an equal-or-better-than offering.
I just had a Mohawk lift installed so I'm chomping at the bit to do this service on my GT-C, just need the fluids!
Maybe I've watched Alex on LSC too much, but I wish AMSOIL would either confirm their fluids would work or come out with an equal-or-better-than offering.
I just had a Mohawk lift installed so I'm chomping at the bit to do this service on my GT-C, just need the fluids!
SPONSOR
Joined: Apr 2021
Posts: 846
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From: San Jose, CA
11 E550, 16 AMG GTS, 13 S550
The cars call for an FFL-4 spec fluid. Amsoil has one. This fluid gets used on the GT-R's as well for some of my retail accounts. FFL-4 is a universal fluid since it services so many others' DCT's even Mclaren. I wanted to provide an option for you in case you're still looking. It's what I run in my personal car. I'm also using their ATF in my non DCT engines with success.
Included is my dealer # which will assign you as one of my sponsored customers.
https://www.amsoil.com/p/amsoil-100-..._1/?zo=7236674
Spec Sheet
25% off for Preferred Customers
Text/call if you have any questions.
Included is my dealer # which will assign you as one of my sponsored customers.
https://www.amsoil.com/p/amsoil-100-..._1/?zo=7236674
Spec Sheet
25% off for Preferred Customers
Text/call if you have any questions.
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Alpha European Autotech
Purchase Amsoil at 25% off from me
Chris Tran, Retired Alpha European Autotech Owner
Amsoil Independent Dealer #7236674
Alpha European Autotech
Purchase Amsoil at 25% off from me
Chris Tran, Retired Alpha European Autotech Owner
Amsoil Independent Dealer #7236674
Member
Joined: Aug 2019
Posts: 236
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Fast and Really Fast Sports Cars
Hydraulic oil side: Rowe Hightec ATF DCG II and Motul High Torque DCTF (not multi DCTF) are both also recommended as DCT-F3, MB236.25.
Lubrication oil side: I used Motul 300 75w90. No problems so far.
Lubrication oil side: I used Motul 300 75w90. No problems so far.
SPONSOR
Joined: Apr 2021
Posts: 846
Likes: 559
From: San Jose, CA
11 E550, 16 AMG GTS, 13 S550
Gear oil side any good 75w90 will do. FFL-4 is for the DCT fluid yes.
https://www.amsoil.com/p/amsoil-seve...vg/?zo=7236674
https://www.amsoil.com/p/amsoil-seve...vg/?zo=7236674
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Alpha European Autotech
Purchase Amsoil at 25% off from me
Chris Tran, Retired Alpha European Autotech Owner
Amsoil Independent Dealer #7236674
Alpha European Autotech
Purchase Amsoil at 25% off from me
Chris Tran, Retired Alpha European Autotech Owner
Amsoil Independent Dealer #7236674
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These are hard to find.
Try the Valvoline Dual Clutch ATF which is also compatible with MB 236.25. Also Motul Multi Dual Clutch Transmission Fluid should be a MB 236.25 approved.
Try the Valvoline Dual Clutch ATF which is also compatible with MB 236.25. Also Motul Multi Dual Clutch Transmission Fluid should be a MB 236.25 approved.
Last edited by G. P; Oct 6, 2025 at 07:53 PM.
