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Old 01-27-2011, 11:24 AM   #1
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Question Manual Transmission Gear Oil Change

Need info...how many qrts am I going to need and what is the best oil? I like Lucas but maybe there are cheaper oils just as good that meet the Mopar OME standard? I have the 06, 6 speed clutch and gear set up. Heading to the store today. Also any good links on how to would be great.

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Old 01-27-2011, 11:55 AM   #2
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Speaking from my experience-I made the mistake of having it done (changed) at one of the quick lube type places. (Difficult to access so thought it would be easier.) They put in what they said was same type of fluid-however when Jeep warmed up felt like I was stirring rocks with a long stick, when shifting. Called them and they did some checking-replaced with Mopar recommended fluid, problem fixed. Hadn't driven more than 20 miles.
However on further reading of owner's manual (yes my fault) discovered it is supposed to be a lifetime fluid-unless contaminated. Have had no issues since.

Good luck!!

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Old 01-27-2011, 12:05 PM   #3
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lifetime...ok thanks for the info..one less job..
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Speaking from my experience-I made the mistake of having it done (changed) at one of the quick lube type places. (Difficult to access so thought it would be easier.) They put in what they said was same type of fluid-however when Jeep warmed up felt like I was stirring rocks with a long stick, when shifting. Called them and they did some checking-replaced with Mopar recommended fluid, problem fixed. Hadn't driven more than 20 miles.
However on further reading of owner's manual (yes my fault) discovered it is supposed to be a lifetime fluid-unless contaminated. Have had no issues since.

Good luck!!
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Old 01-27-2011, 12:06 PM   #4
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Check manual to be sure you have different tranny-mine is an '04
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Old 01-27-2011, 12:11 PM   #5
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Good ole Mopar and their "lifetime" parts... Life time fuel filter, lifetime gear oil... Right...
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Old 01-27-2011, 12:38 PM   #6
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lol yes for sure...ok jp will do
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Good ole Mopar and their "lifetime" parts... Life time fuel filter, lifetime gear oil... Right...
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Old 01-31-2011, 08:46 PM   #7
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The 6 spd uses Mopar Manual Transmission Lubricant MS-9224 or Pennzoil Syncromesh, 1.5 L (3.17 pts).

You'll need 14 and 17 mm allen wrenches for the drain and fill plugs.

Just changed mine at 67000 mi.
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Old 01-31-2011, 11:40 PM   #8
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Awesome info JKP thanks so much. I used to hit Warner Robbins and sell to AFLAC. Then take some of the clients up to hit the Tattletale in Buckhead. Ah those were the days.. Thanks again for this info.
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The 6 spd uses Mopar Manual Transmission Lubricant MS-9224 or Pennzoil Syncromesh, 1.5 L (3.17 pts).

You'll need 14 and 17 mm allen wrenches for the drain and fill plugs.

Just changed mine at 67000 mi.
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Old 01-31-2011, 11:46 PM   #9
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Some complain about how their newer transmissions shift after filling them with Synchromesh (from either GM or Pennzoil) after a while. It may meet the spec but I wouldn't run Synchromesh which is also a conventional gear lube that wouldn't be so good in a transmission in extra cold weather. I'd be more apt to run Redline MT-90, Royal Purple Synchromax, or Amsoil's equivilent whose name escapes me at the moment.
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Old 02-01-2011, 01:12 AM   #10
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Right on Jerry...yea I stay far from Pennzmaul and GM but will take a reminder on anything!
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Some complain about how their newer transmissions shift after filling them with Synchromesh (from either GM or Pennzoil) after a while. It may meet the spec but I wouldn't run Synchromesh which is also a conventional gear lube that wouldn't be so good in a transmission in extra cold weather. I'd be more apt to run Redline MT-90, Royal Purple Synchromax, or Amsoil's equivilent whose name escapes me at the moment.
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Old 02-01-2011, 04:26 PM   #11
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No problems shifting with either the FF or the Pennzoil here, but it's not very cold in Mid GA either.

I do have synthetic 75W-90 gear oil in the '92's AX15, and it shifts much better than the FF did.

You're out of warranty, so you don't have to worry about voiding it.
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Old 02-01-2011, 05:29 PM   #12
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Harumph: Mine was contaminated. I replaced it with the recommended 75W-90. It was hard to shift and the synchronizer whined in 5th gear. I flushed it and put in 10w-30 synthetic motor oil and I am shifting easy and no synchro whine.

Whatddup with THAT?
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Old 02-01-2011, 08:46 PM   #13
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Was the 75W-90 synthetic? GL-4 or 5? Supposed to use GL-4 due to the GL-5 attacking syncros. Or maybe there was just some contamination left and you finally got it all out.

Really shouldn't be much difference between it and 10W-30 synthetic.
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Old 02-02-2011, 01:00 AM   #14
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My dealer has the MS-9224 only need 3 quarts so I guess I can't go wrong there..?
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Was the 75W-90 synthetic? GL-4 or 5? Supposed to use GL-4 due to the GL-5 attacking syncros. Or maybe there was just some contamination left and you finally got it all out.

Really shouldn't be much difference between it and 10W-30 synthetic.
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Old 02-02-2011, 07:18 PM   #15
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If you go with the stock MS-9224, you can get it much cheaper at the auto parts store.

Pulled this list of manufacturers off another Jeep site:

The following products are MS-9224 compliant:
• Chrysler synchomesh fluid #4874464
• Penzoil Synchromesh Fluid #18106
• Quakerstate Synchromesh Fluid #59634
• GM synchromesh fluid #12345349
• GM synchromesh fluid 12345577
• Havoline MTX fluid #1874
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Old 02-02-2011, 08:32 PM   #16
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how often should you change it? i showed my gf how to drive a standard an of course she would grind the gears, so im wondering if theres some shaveings and i should fush it? it dosent shift hard or any other notice able problems as of now.
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Old 02-02-2011, 10:39 PM   #17
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FWI: Amsoil Manual Synchromesh Transmission Fluid 5W-30, MTFQT.

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