Mailed to ZF.com about tranny fluid their response here
09-05-2016, 04:31 PM
#61
Race Director
However i don't know... I've taken a look at GM fluid and they have 2 different fluids type, all for manual trans....
I know instead that there are three fluids that work good on zf-s 6-40
AMSOIL SYNCHROMESH 5w30
CASTROL 10w60
REDLINE MTL 75w80 (actually i'm running with this, no problem at the moment, i would however swap to AMSOIL next fluid change, i'd like to feel differences beetween amsoil and redline)
IMO GM fluid should be ok.... blocker ring are always made of brass Fluid,
I know instead that there are three fluids that work good on zf-s 6-40
AMSOIL SYNCHROMESH 5w30
CASTROL 10w60
REDLINE MTL 75w80 (actually i'm running with this, no problem at the moment, i would however swap to AMSOIL next fluid change, i'd like to feel differences beetween amsoil and redline)
IMO GM fluid should be ok.... blocker ring are always made of brass Fluid,
use castrol bmw engine oil for your bmw engine, not your transmission.
engine oil is meant to be ultra slick - no friction. synchros need some friction to operate
id hate for a newb to see this and think they gain something by putting this unusual fluid into their zf6. id hate for them to run into the same problem i did. ive seen othr complaints here about it too (though to be fair, ive seen more people say it worked fine then people complain about it -like me).
btw. mine is a 93 with blue tag and a remanufacturd for gm plaque on it.
transmission works fine and no need for me to do anything to it, other than use the proper fluid which is not bmw engine motor oil (at least in my case).
Last edited by dizwiz24; 09-05-2016 at 04:33 PM.
09-06-2016, 07:42 AM
#65
Le Mans Master
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09-06-2016, 08:05 AM
#67
Le Mans Master
09-06-2016, 03:12 PM
#69
Melting Slicks
Following assessment of the three lubricants we reccommend for use in the S6-40 transmission
2. GM 5W30 (GM factory fill fluid)
- good synchronizer performance in sinter based synchronizer systems
- good scuffing and wear performance
- good shift performance especially at lower temperatures
It's human nature to experiment, to look for "something better" but as far as the oil for my 96 ZF blue tag, I go to the local Chevy dealer, get the recommended GM lube, change the oil frequently, and so far, so good. No problems.
On a side note, speaking for myself, transmission longevity comes first.
Last edited by mtwoolford; 09-06-2016 at 03:17 PM.
09-06-2016, 03:22 PM
#70
Drifting
Thread Starter
It's human nature to experiment, to look for "something better" but as far as the oil for my 96 ZF blue tag, I go to the local Chevy dealer, get the recommended GM lube, change the oil frequently, and so far, so good. No problems.
On a side note, speaking for myself, transmission longevity comes first.
On a side note, speaking for myself, transmission longevity comes first.
09-06-2016, 04:35 PM
#71
Melting Slicks
09-06-2016, 04:43 PM
#72
Drifting
Thread Starter
Anyway i can find any oil for trans here, for vette amsoil, redline or castrol no problem.
Just Gm is hard to get...
09-13-2018, 09:56 PM
#73
2nd Gear
Member Since: Sep 2018
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Could you please share what oil they give you including part number. Thanks
It's human nature to experiment, to look for "something better" but as far as the oil for my 96 ZF blue tag, I go to the local Chevy dealer, get the recommended GM lube, change the oil frequently, and so far, so good. No problems.
On a side note, speaking for myself, transmission longevity comes first.
On a side note, speaking for myself, transmission longevity comes first.
09-14-2018, 05:22 PM
#74
Melting Slicks
The factory service manual recommended lubricant is 2.12 liters / 4.4 pints, Gear Lubricant GM P/N 1052931; if I recall the last time, the part number may have been super ceded but the lube was still the GM recommended lube for the ZF transmission.
09-14-2018, 07:36 PM
#75
2nd Gear
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The factory service manual recommended lubricant is 2.12 liters / 4.4 pints, Gear Lubricant GM P/N 1052931; if I recall the last time, the part number may have been super ceded but the lube was still the GM recommended lube for the ZF transmission.
09-16-2018, 02:06 PM
#76
Melting Slicks
I’m looking for confirmation on the superseded part number. Do you know it? I’m in Australia and we dont have any dealers here that can confirm this. Ive done some digging around and came up with; GM - 88900333 and/or ACDelco - 10-4006... Any clarification here would be extremely helpful. Thanks in advance!
Last edited by mtwoolford; 09-16-2018 at 02:08 PM.