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Old 11-25-2009, 02:31 PM   #1
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Transfer case oil

I was reading the manual for my '02, and it states that for a manual transmission you use "Mopar Manual Transmission Fluid" (whatever that happens to be) and it states that the transfer case should be using "Mopar ATF +4 Type 9602". Is that correct? I've never put ATF in a manual anything, so this doesn't seem like it's correct.

This is relevant to me since I recently changed my tranny oil, but have as yet to do the transfer case. I may be going back to the stock oils since I don't care for the morning notchyness of the Royal Purple Syncromax.

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Old 11-25-2009, 03:02 PM   #2
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Quote:
Originally Posted by Ray - San Jose View Post
I was reading the manual for my '02, and it states that for a manual transmission you use "Mopar Manual Transmission Fluid" (whatever that happens to be) and it states that the transfer case should be using "Mopar ATF +4 Type 9602". Is that correct? I've never put ATF in a manual anything, so this doesn't seem like it's correct.

This is relevant to me since I recently changed my tranny oil, but have as yet to do the transfer case. I may be going back to the stock oils since I don't care for the morning notchyness of the Royal Purple Syncromax.
I have used the ATF +4....here is an interesting article on trany juice.....
Jeep Articles / General (Red Line Oil MT90) - MoabJeeper Magazine

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Old 11-25-2009, 03:19 PM   #3
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Because it is chain and not gear driven, the TJ's 231 transfer case needs ATF, not gear lube. Unlike an automatic transmission however, the 231 is not fussy about the type of ATF it runs on. Mercon, ATF+3, ATF+4, etc. are all fine. The shop manual and owners manual will say to only use ATF+3 or ATF+4 but that is only so it matches what the automatic transmission requires. Personally, I'd run (and do run) ATF+4 simply because ATF+4 is a synthetic and will last a long time.
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Old 11-25-2009, 04:04 PM   #4
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Chain drive would definatly explain the lower viscosity oils. Thanks Jerry. This is my first 4x4, so I'm not familiar with the internals of a transfer case.
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Old 11-25-2009, 07:17 PM   #5
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ATF +4 ? how much is that at Autozone, I definitely need to change mine since it grinds when I change gears. Also the stuff you put into your gas tank to "improve mileage and clean out deposits" does that actually work? I forget the name, but they sell it everywhere.
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Old 11-25-2009, 07:59 PM   #6
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Your transfer case grinds when shifting into 4Lo? Normal, most of the time. Be at a dead slow crawl or stopped to shift into 4Lo.

It should not grind at all when shifting in/out of 4Hi at any sane speed.
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Old 11-26-2009, 12:27 PM   #7
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Oh no not that going for 4hi to 4lo. I meant shifting gears, or going into 1st, sometimes 2nd, for sure 3rd or reverse, unless I give it 3 seconds between shifts, the gears grind.

A Friend told me he changed the Transmission oil with the syncromesh and could do the royal purple if I was rich enough. He said it stopped alot of the grinding. I still have powertrain warranty on this vehicle, but last time I took it in, they did something that made it harder to switch gears(felt like they they lined the gears with silicone or something) and it worked for a bit but now its back.

Ill probably take it back into them one last time before I leave.

Also I think I was talking about Octane Booster, is that stuff actually worth buying?

Also youd be surprised at how rare steel Rivets are, hit up Dixieland at Spring Valley and Home Depot down at Chula Vista, no 3/16'' Steel Pop Rivets = \
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Old 11-27-2009, 07:16 PM   #8
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bump
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Old 11-27-2009, 07:22 PM   #9
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NSG370 - JeepForum.com Community Jeep Wiki

I have a 6 speed manual TJ Wrangler 2005. I have the NSG370 T-case?
Would ATF+3 or +4 work just fine? And how many quarts would I need, or is this also all in the service manual.

Jeep Articles / General (Red Line Oil MT90) - MoabJeeper Magazine
Conjunctly, I take it since I dont have AX-15, I dont need to worry about Brass Gears being eaten away by sulfur?
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Old 11-27-2009, 07:55 PM   #10
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Oh no not that going for 4hi to 4lo. I meant shifting gears, or going into 1st, sometimes 2nd, for sure 3rd or reverse, unless I give it 3 seconds between shifts, the gears grind.

A Friend told me he changed the Transmission oil with the syncromesh and could do the royal purple if I was rich enough. He said it stopped alot of the grinding. I still have powertrain warranty on this vehicle, but last time I took it in, they did something that made it harder to switch gears(felt like they they lined the gears with silicone or something) and it worked for a bit but now its back.

Ill probably take it back into them one last time before I leave.

Also I think I was talking about Octane Booster, is that stuff actually worth buying?

Also youd be surprised at how rare steel Rivets are, hit up Dixieland at Spring Valley and Home Depot down at Chula Vista, no 3/16'' Steel Pop Rivets = \
Albert, rather than try changing gear lubes which could conceivably void the extended warranty, in case they felt they could claim you installed a gear lube THEY didn't feel was the right stuff, I'd just take it back and let them fix it under the warranty.

Forget Octane Booster, it won't do anything good for your TJ or the gasoline. More octane does not add power or help fuel economy, its only job is to stop pinging by helping the gasoline resist excessive compression which doesn't happen in the TJ's low compression engine.

Not sure why you're having trouble finding 3/16" stainless steel pop-rivets for the corner guards, I easily found that partial box of them I gave you. Be sure to ask for stainless steel, not steel, and ask for pop-rivets, not rivets.
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Old 11-27-2009, 08:11 PM   #11
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Ah, ill try to see if theyll take my Jeep here in 2 weeks. Ill keep looking for those elusive 3/16" steel pop rivets, thanks!
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Old 11-27-2009, 08:28 PM   #12
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Stainless steel.

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