O1E trans/diff fluid

[bmartin247]

Hey everyone! I’m doing maintenance on my b6 before the 2.7t transplant and 4:1 center diff upgrade. I am going to be changing the fluid on my trans and diff when my 4:1 center diff comes in, what fluid do you recommend? Every thread I’ve found people just end up arguing over Motul and redline. I was thinking just going oem as it’s got me this far with no problems. Since I’m going 4:1 center diff though I feel I need a better fluid as there will be more load on the center and rear diff. What are your guys opinion?


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[shurur9]

I think the ravenol is considered the best one or has a good following these recent days.
Fuchs is oem-like.
I used amsoil gl4 synthetic in mine

The rear diffy..I just plan to use gl5 mobil...