What kind of tranny fluid? - JKowners.com : Jeep Wrangler JK Forum
 
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post #1 of 11 Old 05-11-2011, 07:54 AM Thread Starter
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What kind of tranny fluid?

ill be putting in a tranny cooler this week and figured id flush the fluid at the same time (52k miles) but i cant find in the owners book what kind of fluid to put in, but im also missing pages of it to. will atf+4 from my old auto tj work?

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post #2 of 11 Old 05-11-2011, 07:58 AM
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ATF4 x 5qts you will need more with a cooler
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post #3 of 11 Old 05-11-2011, 08:02 AM
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FWIW, when I installed my trans cooler last summer it didn't need any fluid afterwards. I think it may have been over-filled to begin with. There's actually not much fluid in the lines & cooler, and not much will run out when you cut the line.
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post #4 of 11 Old 05-11-2011, 08:07 AM Thread Starter
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im going to flush out the old fluid when i do the cooler install.

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post #5 of 11 Old 05-11-2011, 08:20 AM
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On a somewhat related note, if you go to the Amsoil site, it will list every fluid and filter that you'll need for your vehicle.

http://www.amsoil.com/mygarage/Produ...EEP+WRANGLER+1
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post #6 of 11 Old 05-11-2011, 08:22 AM
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I am running amsoil and the tranny shifts smoother and the temps have droped around 8 deg from normal drving temps
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post #7 of 11 Old 05-11-2011, 08:47 AM
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If you just drop the pan and change the filter you'll only need 1-1/2 qts, which is almost not worth doing. If you do the complete system you will need 6 qts.

This is what I do:

https://www.jkowners.com/forum/showthread.php?t=28958

I just run it through until it is coming out clean, which usually uses a few mores qts, but that way I know it is just fresh fluid in the trans.
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post #8 of 11 Old 05-11-2011, 08:51 AM Thread Starter
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thats what i planned on doing, used to do it on my old tj that way. think i need to change the filter??? i would just do it but then i need to pull my skids off and i didnt really want to to that right now

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post #9 of 11 Old 05-11-2011, 08:54 AM
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Quote:
Originally Posted by BeerMonkeY View Post
think i need to change the filter???
At 52k miles I'd be tempted to change it, although it is most probably fine. What I did was add an external filter (changed the trans pan filter at the same time), change the external filter annually and just leave the pan filter alone.
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post #10 of 11 Old 05-11-2011, 09:02 AM
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Just burn your shit up and let the dealership put a new tranny in under warranty. They put new fluid in that way too!


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post #11 of 11 Old 05-14-2011, 06:05 PM Thread Starter
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Quote:
Originally Posted by SFCCotton View Post
Just burn your shit up and let the dealership put a new tranny in under warranty. They put new fluid in that way too!
id love to do that, BUT my warranty ran out about 20k miles ago, and i wouldnt trust my local dealer to install a transmission

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