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Old 11-18-2013, 12:01 PM   #1
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manual trans fluid change

I tried searching for this and didn't have any luck, so I hope I am not repeating a thread.

2012 Call of Duty MW3, 6 sp manual trans with 23k miles. I want to change my manual trans fluid. Has anyone done this and if so, any pictures or advice to keep me out of trouble? It seems pretty straightforward, but I thought I'd check with others first.

Thanks!

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Old 11-18-2013, 12:03 PM   #2
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Here's the write-up I referred to. It's a simple job. http://project-jk.com/jeep-jk-write-...ission-service

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Old 11-18-2013, 12:07 PM   #3
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I have done it. Easy Peasy. Some people have to make a tool to get the drain plug out due to the exhaust but on my 13 there was plenty of clearance for an allen socket.

Heres a good write up:
Project-JK.com - Jeep JK Wrangler Resource » Jeep JK Wrangler NSG-370 Manual Transmission Service

EDIT: beat me to it!
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Old 11-18-2013, 12:30 PM   #4
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Awesome. Thanks! So cool that everyone here is so helpful.
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Old 11-18-2013, 01:23 PM   #5
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Originally Posted by loud pipes View Post
2012 Call of Duty MW3, 6 sp manual trans with 23k miles. I want to change my manual trans fluid.
Thanks!
Why?
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Old 11-18-2013, 01:33 PM   #6
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Why?
Recommended by owners manual if > 50% of driving is high speed sustained at high temps or if under heavy loads. I may not quite need to, but I figure it can't hurt.
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Old 11-18-2013, 01:45 PM   #7
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Recommended by owners manual if > 50% of driving is high speed sustained at high temps or if under heavy loads. I may not quite need to, but I figure it can't hurt.
When you see all the gunk that comes off your magnet you'll be glad you did.
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Old 11-18-2013, 02:41 PM   #8
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When you see all the gunk that comes off your magnet you'll be glad you did.
That, and its not that expensive. better safe then sorry
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Old 11-18-2013, 04:01 PM   #9
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Recommended by owners manual if > 50% of driving is high speed sustained at high temps or if under heavy loads. I may not quite need to, but I figure it can't hurt.
I wasn't happy with the way mine shifted when new (real notchy). I ended up replacing with Redline MTL after reading some of the 13's were underfilled from the factory. It costs like 25 bucks and takes less than an hour. Cheap insurance!

It ended up being some miles rather than the oil that finally made my shifter feel good, but the synthetic did smooth it out a bit. Its perfect now, at 4k miles.
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Old 11-18-2013, 05:38 PM   #10
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I'm actually doing my manual trans. in a few days and using Amsoil synthetic synchromesh. I'll probably also do the transfer case using ATF+4.
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Old 11-19-2013, 01:07 PM   #11
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I changed mine to Amsoil syn. , made the 1-2 shift a lot smoother....43K miles/07 JKU-X

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Old 11-19-2013, 05:25 PM   #12
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I'm actually doing my manual trans. in a few days and using Amsoil synthetic synchromesh. I'll probably also do the transfer case using ATF+4.
did you order the Amsoil online or pick it up locally?
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Old 11-19-2013, 06:37 PM   #13
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did you order the Amsoil online or pick it up locally?
Local parts store had it. I also picked up the Amsoil synthetic ATF for the transfer case.
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Old 11-20-2013, 06:07 AM   #14
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Can't seem to find amsoil locally in VA (Hampton roads area) so ill either have to order it online or try redline
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Old 11-20-2013, 08:13 AM   #15
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How do you know how much oil to put in? Or do you just fill it up until it "spills" out of the top?
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Old 11-20-2013, 08:26 AM   #16
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How do you know how much oil to put in? Or do you just fill it up until it "spills" out of the top?
Thats what I did with my TJ. When I do change my M/T fluid on my JK, I will 100% be going with Redline MTL. That cleared up my notchy shifts from 1st to 2nd in cold weather. Very happy with it.
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Old 11-20-2013, 12:44 PM   #17
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How do you know how much oil to put in? Or do you just fill it up until it "spills" out of the top?
This is what you do based upon the JK being level. I don't think any two will take exactly the same amount.
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Old 11-20-2013, 02:20 PM   #18
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I had a small cheapo plastic pump with hoses on each end, poured the oil into an old Orange juice bottle that the pump fit on.....Pumped until the oil started to come out of the top fill hole....DONE.
It didn't take the full amount that is specified....I bought 4 quarts of Amsoil and I think I have enough to do the job again if I have to...
I bought mine locally. If you get on to the Amsoil website there is a Dealer Locator, I found a bunch of em in my small town, but had to go to the Distributor to get the trans fluid. Pumps are available at Wallmart, Auto-zone, O'Riley's, NAPA.....
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Old 11-20-2013, 05:54 PM   #19
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+1 on the Amsoil. I changed t-case, & diff's also. My local distributor didn't have the syn-mesh in stock, so I ordered it direct, delivered in about 2-3 days.
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Old 11-21-2013, 05:47 AM   #20
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3 qts of fluid for manual transmission should be good right? I've seen threads saying you only need 2qts, projeck jks writeup says 3.
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Old 11-21-2013, 05:59 AM   #21
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Good idea changing it early. Get a synthetic fluid that meets the spec and you'll be golden.
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Old 11-21-2013, 06:13 AM   #22
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So forgive my laziness on searching around but what weight oil is it supposed to be? I'm narrowing it down to synchromesh or am soil
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Old 11-21-2013, 06:22 AM   #23
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So forgive my laziness on searching around but what weight oil is it supposed to be? I'm narrowing it down to synchromesh or am soil
5w30 is Amsoils manual transmission syncromesh fluid
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Old 11-21-2013, 11:30 AM   #24
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3 qts of fluid for manual transmission should be good right? I've seen threads saying you only need 2qts, projeck jks writeup says 3.
I just did mine today and it took slightly less than 2 qts. of Synchromesh. I bought three also. At least now I'm one up for the next fluid change. I also did the transfer case and that also took slightly less than 2 qts. of synthetic ATF.
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Old 11-21-2013, 11:39 AM   #25
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I just did mine today and it took slightly less than 2 qts. of Synchromesh. I bought three also. At least now I'm one up for the next fluid change. I also did the transfer case and that also took slightly less than 2 qts. of synthetic ATF.
Good to know, I ordered 2 qts of amsoil atf as well lol
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Old 11-23-2013, 06:03 PM   #26
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So the mopar manual transmission fluid and ATF aren't synthetic right?
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Old 11-23-2013, 09:16 PM   #27
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So the mopar manual transmission fluid and ATF aren't synthetic right?
No, they're not. Synthetic lubricants will indicate on the bottle that they're "Synthetic". For the transfer case you have to use ATF+4 which is spec'd to Chrysler. You can use whatever brand you want as long as the bottle indicates "ATF+4". You can also use synthetic ATF in the transfer case as long as it indicates on the bottle that it meets/exceeds Chrysler ATF+4 specs. Amsoil synthetic ATF indicates that along with other brands. Make sure you check the bottle. Whether you use synthetic or not is your choice.
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Old 12-02-2013, 06:09 AM   #28
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For the diy guide on project jk's site, my 08 jku required the drain plug removal tool to be about 1/2" long, not 1-1/2". Other than that it went smoothly.
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Old 12-02-2013, 07:46 AM   #29
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No, they're not. Synthetic lubricants will indicate on the bottle that they're "Synthetic". For the transfer case you have to use ATF+4 which is spec'd to Chrysler. You can use whatever brand you want as long as the bottle indicates "ATF+4". You can also use synthetic ATF in the transfer case as long as it indicates on the bottle that it meets/exceeds Chrysler ATF+4 specs. Amsoil synthetic ATF indicates that along with other brands. Make sure you check the bottle. Whether you use synthetic or not is your choice.
Thank you
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Old 12-27-2013, 04:03 PM   #30
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Here's another example of why you change the fluid.





Made all the difference in the world. Next time someone asks me why change it, 2 pics are worth a thousand words.
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