right oil for NSG370 and 231 TC - JeepForum.com
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post #1 of 7 Old 09-03-2009, 02:32 PM Thread Starter
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right oil for NSG370 and 231 TC

Is this right ?

NSG370 6 speed transmission i can use
Manual Synchromesh transmission fluid 5w30

Transfer case 231 i can use ATF+3

Is this correct ?

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post #2 of 7 Old 09-03-2009, 02:44 PM
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I'm planning on sticking ATF+4 in my 231 TC. I'm not sure if ATF+3 will work.

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post #3 of 7 Old 09-07-2009, 04:07 AM Thread Starter
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Anyone else can confirm the right fluid for my setup ?

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post #4 of 7 Old 09-07-2009, 04:37 AM
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T case=1.1 quarts ATF+3 or ATF +4
6 speed=2.4 quarts Mopar part # 04874464AA or Synchromax (meets Mopar MS-9224 specs)
Royal Purple synchromax,Pennzoil synchromesh,Amsoil synthetic.

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post #5 of 7 Old 09-07-2009, 07:10 AM
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Here ya go

This is from the 2005 FSM,,, I like the Amsoil Synchromesh 5w30 myself in the tranny and Mopar ATF+4 from Wally's for the T-Case.

Recommended lubricant for the NV231 transfer
case is Mopar ATF +4, Automatic Transmission
NOTE: DaimlerChrysler recommends using Mopar
lubricants or lubricants of equal quality.
NSG370 - Mopar Manual Transmission Lubricant

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post #6 of 7 Old 09-07-2009, 10:15 AM Thread Starter
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thanks guys ! i am at ~49,000 KM, i guess it's time to change these fluids along with the spark plugs..
My Jeep will be happy

Already did my brake bleeding with a new DOT3. Do i need to change the power steering fluid also ?

Am i missing something to complete the maintenance ? i have a 4 banger (2.4 L)
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post #7 of 7 Old 09-07-2009, 11:03 AM
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I used Royal Purple Synchromax in my NSG370, improved the shifting. I used Advance auto brand ATF+4, which is synthetic in the 231.


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