Royal purple v d4 atf

[CollinsBmw]

So i have a 95 m3 with a zf calling for atf and wanted to know if i should run synchromax or d4 atf for my tranny fluid?

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[ScotcH]

I prefer the Synchromax in these transmissions.

[Redchugger]

i use royal purple max atf and feels great after whatever was in there when i got the car

[Gene V]

Everyone has a personal preference for gearbox oil, mine is Redline MTL...:)

[mboor]

Redline D4 atf + MOS friction additive. It works well enough that i have no reason to try another brand.

[MassiveWalrus]

Redline D4 atf + MOS friction additive. It works well enough that i have no reason to try another brand.

This

[mboor]

This

we will probably have this discussion again next week in a different thread;)

[MassiveWalrus]

we will probably have this discussion again next week in a different thread;)

this is true.