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Old Jan 20, 2009 | 10:26 AM
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Default Tranny Fluid

Just what it says...What do you guys use? Maybe good, better, best fluids? I'm going to be having my school do some minor things for my car so why not the tranny fluid and im not sure what all i need to get before hand so anything else would help.

Thanks guys
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Old Jan 20, 2009 | 10:47 AM
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Try this link, I thnk it will cover all your are asking

https://ls1tech.com/forums/automatic...44210-atf.html
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Old Jan 20, 2009 | 05:27 PM
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Originally Posted by tptransmission
Try this link, I thnk it will cover all your are asking

https://ls1tech.com/forums/automatic...44210-atf.html

Looks to me like that thread doesn't throw up anything but confusion.
It appears that Dexron III is probably sufficient for the 4LE60 application.
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Old Jan 20, 2009 | 05:48 PM
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Dexron III was used when these cars were new. The Dexron VI is the newest formula, for the new transmission, but is designed to be retrofitted as well. I would just use the III.
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Old Jan 20, 2009 | 06:25 PM
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Originally Posted by PontiacFan
Looks to me like that thread doesn't throw up anything but confusion.
It appears that Dexron III is probably sufficient for the 4LE60 application.
Dex 3 or Dex 6 are sufficient. Synthetic fluids last longer but are more expensive.
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Old Jan 20, 2009 | 07:25 PM
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how about amsoil?
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Old Jan 20, 2009 | 07:30 PM
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Amsoil ATF can be used in place of Dexron. It meets all the required criteria.
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Old Jan 20, 2009 | 07:44 PM
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4L60E's take a lot of abuse behind LS1's. And of course the biggest killer of automatics is heat, which in turn cooks the fluid. Which results in premature failure, and why synthetic fluid is so beneficial.

Dexron VI, Mobil 1 ATF, and Amsoil ATF are all excellent fluid.
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Old Jan 20, 2009 | 08:21 PM
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just so im on the safe side which this is a dumb question but i need to get a tranny filter and seal right?
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Old Jan 20, 2009 | 09:10 PM
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Originally Posted by GOR1LA
just so im on the safe side which this is a dumb question but i need to get a tranny filter and seal right?
A trans filter and pan gasket kit?? Yes, when you change the fluid you change both of those as well.
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Old Jan 28, 2009 | 09:45 AM
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So if i go from a Dex 3 to a Dex 4 do i have to flush all the fluid out? Or what if i go from dex 3 to mobile one synthetic? just curious cause im new to all this.
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Old Jan 28, 2009 | 10:07 AM
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castrol DEX III for me
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