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Old 03-24-2010, 10:57 AM   #1
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I need to know what tranny I have

2006 2.4L 6 spd manual

I need to find out so I know what kind of fluid and how much when I change it this weekend. I have a 231 T-case just don't know about the transmission. Any suggestions?

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Old 03-24-2010, 12:22 PM   #2
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I believe you have the NSG 370 six-speed manual transmission.

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Old 03-24-2010, 02:39 PM   #3
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Did some reasearch and that seems right, thanks IslandTJ.

Other questions. It seems the NSG 370 will take just shy of 2 quarts of oil but how about the 231 T-case? Also my owners manual is no help, all it says is use mopar brand lubricant. What am I suppose to put in the Tranny and T-case? Ive heard a lot of people use redline but theirs a million different kinds, MT-90, MTL, etc... for the t-case can I just use any ATF 4+ oil? how about the transmission what should I put in there?
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Old 03-24-2010, 02:54 PM   #4
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For the transfer case, use only ATF+3 or ATF+4, it holds 1.1 quarts so you'll need to buy two quarts. Any good quality ATF+3 or ATF+4 is fine. The transfer case actually doesn't care what ATF it runs on so long as it is good quality, no kidding. Your owners manual only specifies a particular ATF for the transfer case so as to match what the transmission requires. It's less confusing for everyone that way.

The NSG370 holds 1.58 quarts so you'll need two quarts there too. Royal Purple Synchromax, a synthetic, is fine for the transmission. I would calll Redline to see what they recommend. Click on Red Line Synthetic Oil. Synchromesh from GM or Pennzoil meets the tranny specs too but I'd rather run the RP Or Redline synthetics if it were me.
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Old 03-24-2010, 03:02 PM   #5
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Thanks Jerry great info!

does the Royal Purple Synchromax only come in one weight, so I if I were to pick some of that up I can't get the wrong kind?
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Old 03-24-2010, 03:03 PM   #6
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There is only one viscosity RP Synchromax and that is fine for the transmission.
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Old 03-24-2010, 03:21 PM   #7
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Awesome thank you very much, I can get to work now
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Old 03-25-2010, 06:55 PM   #8
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For the transfer case, use only ATF+3 or ATF+4, it holds 1.1 quarts so you'll need to buy two quarts. Any good quality ATF+3 or ATF+4 is fine. The transfer case actually doesn't care what ATF it runs on so long as it is good quality, no kidding.
How about carquest ATF +4, it's Valvoline in a different bottle, atleast that's what the guy tells me. Is that considered good quality? Will that be fine in the T-case? The bottle says it's recommended in Chrysler vehicles. It's not fully synthetic does that matter?
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Old 03-26-2010, 08:23 AM   #9
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Is carquest ATF +4 non-synthetic good enough quality for the T-case? It's valvoline in a diff bottle. How important is it to use fully synthetic in the T-case?
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Old 03-26-2010, 11:31 AM   #10
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Is carquest ATF +4 non-synthetic good enough quality for the T-case? It's valvoline in a diff bottle. How important is it to use fully synthetic in the T-case?
Hmmm, my Valvoline ATF +4 states it is a synthetic fluid. I use it in both my 32RH and NP231.
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Old 03-26-2010, 11:37 AM   #11
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I believe all ATF +4 is fully synthetic.
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Old 03-26-2010, 11:53 AM   #12
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How about carquest ATF +4, it's Valvoline in a different bottle, atleast that's what the guy tells me. Is that considered good quality? Will that be fine in the T-case? The bottle says it's recommended in Chrysler vehicles. It's not fully synthetic does that matter?
As said above, the 231 transfer case is definitely not fussy about its ATF, Carquest ATF+4 would be a superb choice.
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Old 03-26-2010, 06:46 PM   #13
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Jerry, the T-case took 1 and 3/4 quarts of ATF +4. I was parked on level ground to. Whats up with that? I filled it until it oozed out of the fill hole.
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Old 03-26-2010, 06:50 PM   #14
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No worries, your transfer case's gears & chain have probably just worn down so much that there is more space available for ATF. I always say the more ATF, the cooler it runs so no worries. J/k, no problem. That's close enough and how I fill mine too.
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Old 03-26-2010, 07:48 PM   #15
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Thx Jerry you have been a lot of help, I'm a worry wart so of coarse I worried when it took almost 2 qts. By the way, those cheap bottle pumps suck! Next time I'm going to get a suction gun instead of making a mess all over.

How often should it be changed? I've been know to go through deep mud and water on occasion

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