ZF Fluid -- GM or BMW

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Jun 8, 2006 | 08:08 PM

#21

~db~

Thread Starter

Pro

Joined: Sep 2000

Posts: 599

Likes: 0

From: Tampa,FL

Quote:

Originally Posted by neat

4 entries found for redundancy.
re·dun·dan·cy ( P ) Pronunciation Key (r-dndn-s)
n. pl. re·dun·dan·cies

1a. THIS FREAKING THREAD!

Holy hell, use the search engine, there are 100's threads out there discussing this very same issue. Here, I'll show you:

http://forums.corvetteforum.com/show...ight=ZF6+fluid

http://forums.corvetteforum.com/show...ight=ZF6+fluid

http://forums.corvetteforum.com/show...ight=ZF6+fluid

http://forums.corvetteforum.com/show...ight=ZF6+fluid

http://forums.corvetteforum.com/show...ight=ZF6+fluid

http://forums.corvetteforum.com/show...ight=ZF6+fluid

http://forums.corvetteforum.com/show...ight=ZF6+fluid

etc...

WOW! You must be a lonely person. Bad day at work??? Well If this is such a REDUNDANT thread, why is there so much response and so many people willing to share their experiences and opinions?? Not that I owe you squat, but I DID use the search feature prior and read threads that didn't hit on the questions I was wanting answered. Anyway, thanks for your expert advise. Oh here's a definition for ya,

rude
adj. rud·er, rud·est
Relatively undeveloped
Being in a crude, rough, unfinished condition:
Exhibiting a marked lack of skill or precision
Lacking the graces and refinement of civilized life; uncouth.
Lacking education or knowledge; unlearned.
Ill-mannered; discourteous: rude behavior.

Have a beer bro and relax

Jun 8, 2006 | 08:12 PM

#22

Fancyazz

Instructor

Joined: Aug 2005

Posts: 105

Likes: 0

From: Nipomo CA

Quote:

Originally Posted by ~db~

Jun 9, 2006 | 05:37 AM

#23

Louis Bartay

Burning Brakes

Joined: Dec 2001

Posts: 777

Likes: 1

From: Fort Worth Texas

Several years ago Bill at ZFdoc said the Redline GL4 MTL works great in the ZF. My 96 LT4 has 72,000 miles on it and I change the Redline every 10,000 miles with no problems. Be carefull when you replace the master slave as the DOM (GM) style slaves had the seals installed backwards. I was told the after market cast slaves had the seals in correctly. When you replace the clutch slave remove the piston and check to see if the seal is installed correctly. E-mail Bill at zfdoc.com he should have pictures of the correct position of the seal. And do not use DOT3 fluid. Buy the GM fluid. Jeff Debhur and Bill discovered the seal problem, GM should pay them for the R&D that GM would not do.

Jun 9, 2006 | 07:55 AM

#24

STEVEN13

Melting Slicks

Joined: Sep 2003

Posts: 2,270

Likes: 118

From: N. Babylon NY

Redline here also since 2001. Car is tracked (Road Course) 2-4 times a year and run hard.

Steven

Jun 9, 2006 | 08:39 AM

#25

Louis Bartay

Burning Brakes

Joined: Dec 2001

Posts: 777

Likes: 1

From: Fort Worth Texas

Quote:

Originally Posted by dizwiz24

quote:

I have a new rebuilt zf by Bill ayt zfdoc and he filled it with castrol.

Let me tell you about castrol bmw motor oil in my transmission....I first started getting grinded shifts 1-2 and 2-3. (93 vert ZF6) Next,at high RPM drag-race style shifting, the shift lever physically wouldnt not move into / and or engage the next gear. I had to abort several drag runs because of this.

I contact bill ata zfdoc and he suggested my clutch hydraulics were bad. I replaced master, slave, meticulously bled everything. No dice.

I told him I was running the castrol stuff. He then suggested I need a syncho rebuild at a cost of THOUSANDS of dollars.

I wondered if it could be the new Castrol 10w-60 fluid I had put in it and got the proper GM p/n stuff (listed in your owners manual) from my dealer. All the grinding, missed shifts, gears not engaging, etc. disappeared.

Bill at zfdoc has his own little 'scientific comparison' as to why using the castrol stuff is ok. I can only speak from my experiences.

Putting that stuff in my transmission was he!1l

E-mail Bill again as there was a seal problem that was installed backwards from GM (DOM style). I read that the new cast slaves from the aftermerket guys has the seal installed correctly.If you have a new Drawn Over Mandrel(DOM) GM slave, remove the piston and see if the seal is installed correctly. They just found the fix last week as I have heard that many of the C-4 owners were still having a shifting problem after replacing the master and the slave.

Last edited by Louis Bartay; Jun 9, 2006 at 08:41 AM.

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