C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

ZF-6 Fluid Recomend

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Old Jan 13, 2004 | 12:50 PM
  #21  
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Default Re: ZF-6 Fluid Recomend (wake)

The Castrol stuff is synthetic -- GM is Dino oil. If it's a normal driver, the GM stuff is just fine. If you do any racing (especially roadracing), definitely go with Castrol. It holds up much better to sustained high temps.
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Old Jan 13, 2004 | 09:15 PM
  #22  
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Default Re: ZF-6 Fluid Recomend (wake)

Don't forget the 17mm allen. Tighten up the drain good. I had to re-tighten mine. Was weeping a little oil.
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Old Jan 13, 2004 | 10:44 PM
  #23  
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Default Re: ZF-6 Fluid Recomend (CaliforniaVette)

You can get the BMW fluid at any BMW dealer, tell them you are a club member and it's about 50% off.

It made my 90K mile ZF6 shift much, much better, and the effect has lasted 2-3 months so far.

Jeff

50% off!!! what? a club member... of this forum or of an actual vette club.
Actually...I work with a guy who is in the BMW club of America. He told me about his tip. He has been in there several times without his car and just said "Does that include the club discount" and they set him up. So I tried it, although I don't own any German cars or belong to their club. Worked like a charm, I couldn't believe the discount! I posted about it here earlier, and evidently some dealerships have higher markups than others, but my bill for 3 liters (roughly 3 qts) when from near $50 to $21.
Jeff
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Old Jan 13, 2004 | 11:07 PM
  #24  
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Default Re: ZF-6 Fluid Recomend (no_radio)

I would go with the GM fluid.
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Old Jan 13, 2004 | 11:43 PM
  #25  
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Default Re: ZF-6 Fluid Recomend (meyre1)

Hi,

I have used both the factory oil and the RedLine. At present time I have the RedLine in. The RedLine is recomended by Doug Rippie Motorsports. While I don't put many miles on in a year, I do club race about 4 times a year. So far no problems.

It seems that the Castrol is the hot one to use now.

Steven

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Old Jan 13, 2004 | 11:58 PM
  #26  
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Default Re: ZF-6 Fluid Recomend (STEVEN13)

well i picked up 3 liters of Castrol 10w-60 for under 40 bucks. im gonna put it in tomorrow and ill let you know how it went.
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