ZF Trans Fluid Change

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Nov 18, 2014 | 02:42 PM

LannyL81

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Melting Slicks

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From: Green Valley Arizona

ZF Trans Fluid Change

Is the Castrol TWS 10W-60 still the fluid of choice to use in the ZF six speed trans when doing a fluid change?

Its been several years since I did this last.

Thanks.

Nov 18, 2014 | 02:56 PM

FASTAZU

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I'm sure you will get all kinds of opinions on what is best, I have used them all and they preformed well the key is to change the fluid at suggested intervals. I currently run Castrol in my 93 and Amsoil in the 91.

Nov 18, 2014 | 05:39 PM

RollaMo-LT4

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Quote:

Originally Posted by LannyL81

Is the Castrol TWS 10W-60 still the fluid of choice to use in the ZF six speed trans when doing a fluid change?

Depends on who you ask.

Quote:

Originally Posted by We Gone

Completely happy with the Amsoil in mine.
http://www.amsoil.com/shop/by-produc...n-fluid-5w-30/

Nov 18, 2014 | 06:28 PM

TorchTarga94

Melting Slicks

Joined: Jul 2011

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From: Trinity FL

Do a search on the most recent threads.

General consensus is Amsoil now. Much smoother shifting and seems to last quite a bit longer. Also people reported less brass particles from the synchros in the gear oil during fluid changes as compared to fluid changes with the castrol.

Nov 18, 2014 | 06:30 PM

aDigitalPhantom

Burning Brakes

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From: That one city...you know that one. Idaho

I use the Amsoil.

Remove the fill plug before you remove the drain plug.

Nov 18, 2014 | 07:04 PM

C66 Racing

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From: King George VA

As mentioned above, many forums members using this:
AMSOIL Synthetic Synchromesh Transmission Fluid (MTF) (Product Code MTFQT)

(Note that I use AMSOIL's Torque Drive ATF, a dexron III spec fluid, in my 02 Z06 at the track).

More than happy to get AMSOIL products for forum members at dealer wholesale pricing, about 25% below retail, via the AMSOIL Preferred Customer Program. Drop me a PM if interested.

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AMSOIL Preferred Customer Program (Members buy at Wholesale - a savings of about 25%)

Nov 19, 2014 | 01:10 PM

DGXR

Melting Slicks

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From: Sacramento California

Only did one ZF6 fluid change so far (about 4 months ago) and used Pennzoil Synchromesh fluid. It shifts good and everything works fine, no problems or weird noises. But next time I am going with Amsoil because it's fully synthetic and will generally last longer, plus all the positive feedback and recommendations here at CF make it a pretty easy choice. You could also try to find some of the original GM fluid but I've heard it is hard to find and quite expensive for non-synthetic.

I think any of these is fine... change Pennzoil/GM non-synthetic more often or change Amsoil less often. But personally I would not use the Castrol 10w60.