Best Transmission Fluid

[r4dr]

Hate to bump this but... didn't see any mention of this Febi fluid: https://www.fcpeuro.com/products/min...id-83220403247

Did it not get mentioned because it's already known to be crap? Anyone tried it?

[terra]

good point. i could get the redline locally and was being impatient. maybe i'll just order the oe fluid

I've tried all sorts of options, and I'd say that's your best bet.

[sev]

Wait you just said RP is pure crap so why are you gonna try another non-spec fluid?

Is there something really wrong with spending $35-40 on pentosin or ravenol gl4 75w80 spec fluid?

good point. i could get the redline locally and was being impatient. maybe i'll just order the oe fluid

[Daniel]

I've had great results using ravenol for trans flud. Same goes for engine oil, I am a big fan of ravenol at this point.

[ATB88]

Wait you just said RP is pure crap so why are you gonna try another non-spec fluid?

Is there something really wrong with spending $35-40 on pentosin or ravenol gl4 75w80 spec fluid?

Yeah this is something I really don't understand. People are willing to spend $150 on proper spec diff fluid but not trans? It's not like you're changing this every 3-5k miles like your engine oil, just get the right fluid ¯\_(ツ)_/¯

[Tbonem3]

Wait you just said RP is pure crap so why are you gonna try another non-spec fluid?

Is there something really wrong with spending $35-40 on pentosin or ravenol gl4 75w80 spec fluid?

[sev]

i think i'll go with the redline. Bimmerworld says its close to mtf-2.

[Tbonem3]

https://www.bimmerworld.com/Fluids/D...ion-Fluid.html

anyone tried pentosin ffl-4? does it work as advertised?

My friend has it in his, but drives very little so hard to give feedback. Seems fine. Damage to synchros wouldn't show up for a while if it didn't have gl4 spec additive protection. Viscosity spec is close, so it should "feel" fine right away.

[sev]

https://www.bimmerworld.com/Fluids/D...ion-Fluid.html

anyone tried pentosin ffl-4? does it work as advertised?

im about to change fluid, do i buy 2 liters or 3?

[sev]

Not trying to fan flames here, BUT... reviews or thoughts on RP Synchromax?

pure crap. I have it and I hate it.

[Tbonem3]

I was implying the product label matters? Wtf

and your analogy doesn't work my ps system was made to be used with atf unlike the getrag so I'll stick with spec. You wanna go off spec just based on what the company says or did you look at voas and uoas?

[r4dr]

... no, it isn’t.

Redline doesn't recommend an ATF for a manual transmission because they were dropped on their heads as children, they do it because they believe the specs warrant the recommendation... whether that's accurate seems to be up for contention around here, but it has nothing to do with the product name on the label as the post I quoted was implying.

[Obioban]

Gear oil is gear oil is gear oil.

... no, it isn’t.

[r4dr]

What automatic transmission did you install?

Gear oil is gear oil is gear oil. I don't think your steering is powered by an automatic transmission?

[CrookedCommie]

Well crooked commie, I tend to disagree with your opinion ,FWIW , which we all have one ,so far my tranny has gone over 50,000 miles with the redline d4atf....
for street. Works great...
.
..

That's Redline's opinion too, problem is, all the synchros I've used it on tend to disagree. The track car got switched to Ravenol MTF-2 and all high rpm grinding magically went away.