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  1. #1
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    Default How To: Change Manual Transmission Oil

    How To: Change Manual Transmission Oil

    Here are a few steps on how to change the manual transmission oil. This is not that hard of a task, but if you have never changed the manual transmission oil it's hard to know where to even start from.

    Equipment Needed

    • Transmission Oil
      Capacity (from FSM): 3.6-3.8 liters, (7-5/8 - 8 US pt, 6-38 - 6-3/4 lmp pt). In English, 4 1qt bottles will be needed, and you'll have some left.

      Most people would suggest Redline MT90, the choice is up to you. You can get it fairly cheap at GoFastDepot.com


      If you don't want to use Redline MT90, check the FSM (Factory Service Manual) for the specifications of the oil that can be used for the transmission.

    • Wrenches
      For drain plug:


      For fill plug:



    • Sealant
      FSM has these listed: Genuine anaerobic liquid, Three Bond TB1215, or equivalent

    • Funnel and a hose or little Fluid Oil Pump
      I highly suggest a Fluid Oil Pump that can be found in Advance Auto Part for about $6. Using the pump will help you get the oil in a much shorter time, it took me about 10 to pump all the transmission oil.

      Product Website

      Get it from Advance Auto Parts



    • Oil Drip Pan to pour the old oil into
      I used the normal oil drip pan that is used for engine oil.


    Down to the Business

    1. Take a drive in your car to warm up the transmission fluid. This will help it exit the transmission quicker.

    2. Take off the fill oil plug, it is found facing the front of the car. This way if the fill plug gets stuck you can still drive the car, instructions on doing that are in Step 3. Thanks NismoSER for the tip :biggthump



    You will have to use this wrench:


    If your fill plug is stuck, you can always use the Speed Sensor hole to fill the oil back up.


    3. Loosen the Transmission oil drain plug and let the oil empty out into the oil drip pan. It might have a pretty bad odor. While the oil is draining cleanup the plug and remove and dirt or debris from it.

    Use this wrench to loosen the drain plug:








    4. After all of the oil has been drained, apply some sealant (as listed in the Equipment Needed section above) to the drain plug and tighten the bolt according to the FSM torque numbers.
    FSM Torque Numbers: 25 - 34 N-m (2.5 - 3.5 kg-m, 18 - 25 ft-lb)





    5. Plug the hose from the funnel pump to the fill plug and add about 3.6-3.8 liters (7-5/8 - 8 US pt). The way you can check if you have enough is by putting your finger in the hole and if you feel the oil right up top, then you have enough. (Note - if your front is jacked up, the oil levels are not going to be even)









    The finger method of checking if the oil is full. Thanks Mike for the pic :biggthump


    For the pump to better fit the MT90 bottle you can cut bottle tip at about 4 ribs. You can see this indicated below with a yellow pointer. Thank You for the tip BBYE V8




    6. Add some sealant around the thread of the fill plug, then tighten the plug. Thats it!

    Big thanks goes to Sentrixx and AztekSE-R for telling me how to do this. Also big thanks to Serban and the GoFastDepot.com for the great prices!
    Last edited by Vadim; 01-24-12 at 03:05 PM.
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    I like that little pump.

  3. #3
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    Quote Originally Posted by Ninety-9 SE-L View Post
    I like that little pump.
    Works really well
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  4. #4
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    So how many bottles do I need? Two or three bottles?
    1997 Nissan 200SX SE-R - sold
    1998 Nissan 200SX SE-R - daily driver

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    Quote Originally Posted by Ninety-9 SE-L View Post
    I like that little pump.

    That's what she said!
    Wayne
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    Quote Originally Posted by 97 SR20 View Post
    So how many bottles do I need? Two or three bottles?
    You will need 4 bottles. 1 qt per bottle usually, so do the math and you got 4 bottles. I will specify that though..

    Quote Originally Posted by Sentrixx View Post
    That's what she said!
    LOL that reminds me of Austin Powers...

    http://www.youtube.com/watch?v=3h1AzpB_soI
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    I know this is old, but can you re-upload the pics or something so they work? Thanks!
    White 91 SE-R - For Sale. PM me.
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    Quote Originally Posted by Nismo_34 View Post
    I know this is old, but can you re-upload the pics or something so they work? Thanks!
    Yes +1 on the re-upload!

  9. #9
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    Quote Originally Posted by Nismo_34 View Post
    I know this is old, but can you re-upload the pics or something so they work? Thanks!
    Quote Originally Posted by STEPHEN View Post
    Yes +1 on the re-upload!
    Sorry guys moved them and forgot to update
    00 G20t KH3- Loller Rocker + GT28 + 6 Speed
    05 Legacy GT - Big 16G @13psi + Up Pipe + Downpipe
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    Thank you!!!!!

  11. #11
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    One tip I've come across if you find your 1/2" drive is slipping in the hole a little bit, is either spend obscene amounts of money for the unit from nisstune or cut a peice of aluminum can off and wrap it around 3 sides of your wrench.

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    What transmission oil do you guys recommend? How is that MT-90?

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    Quote Originally Posted by canx2k View Post
    One tip I've come across if you find your 1/2" drive is slipping in the hole a little bit, is either spend obscene amounts of money for the unit from nisstune or cut a peice of aluminum can off and wrap it around 3 sides of your wrench.
    Pure genius! I couldn't get my drain plug undone for the life of me. Maybe I need to try that next time.

    Quote Originally Posted by STEPHEN View Post
    What transmission oil do you guys recommend? How is that MT-90?
    MT-90 or Lightweight Shockproof, or a combination of the 2.


    Edit: Thanks V!
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    Can you get a replacement drain plug for these transmissions anymore?

    I was all ready and frankly excited to put some mt-90 in my car. Got the fill plug off easy and then look at the drain plug and it is pretty much rounded off. The previous owner's mechanic must have put an 1/2 impact on it or something because it was pretty mangled. I really want to get fluid changed but have limited mechanical experience and tools.
    Any ideas?

  15. #15
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    Quote Originally Posted by gberg View Post
    Can you get a replacement drain plug for these transmissions anymore?

    I was all ready and frankly excited to put some mt-90 in my car. Got the fill plug off easy and then look at the drain plug and it is pretty much rounded off. The previous owner's mechanic must have put an 1/2 impact on it or something because it was pretty mangled. I really want to get fluid changed but have limited mechanical experience and tools.
    Any ideas?
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  16. #16
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    My fill plug will not budge and i cant get it open was thinking to drill it out ,But i dont want any shards to get into the trans i even tried to weld a bolt into the hole so i could wrench it out and the wont take the weld (makes me wonder what kinda metal its made from), i have plugs from my on NX trans still so that would save me the time looking for replacements.
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    I'm having the exact same problem on my p11. After welding a few bolts, then sockets, I gave up and simply used the speed sensor hole to fill it. Worked really well honestly.
    00 G20t KH3- Loller Rocker + GT28 + 6 Speed
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  18. #18
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    What about using the vent tube that comes off the trans? That is what I plan to fill it through today. Any thoughts?
    Tein coilovers, ceramic coated 4-2-1 header, greddy short shift, megan racing strut bar, 9 pounds flywheel, lightweight work. Boostcartel.com

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    Quote Originally Posted by Chefjrod1 View Post
    What about using the vent tube that comes off the trans? That is what I plan to fill it through today. Any thoughts?
    How did that work out for you?
    1997 Nissan 200SX SE-R - sold
    1998 Nissan 200SX SE-R - daily driver

  20. #20
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    I've filled through the vent hole once. It works, it just takes 100 years for that grabby fluid to flow through such a small hole. And the air has to also come up through it at the same time. No joke. It took 100 years.
    Last edited by BenFenner; 09-11-11 at 01:14 PM.

  21. #21
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    Quote Originally Posted by 97 SR20 View Post
    How did that work out for you?
    Have not done it yet but I will let you know.
    Tein coilovers, ceramic coated 4-2-1 header, greddy short shift, megan racing strut bar, 9 pounds flywheel, lightweight work. Boostcartel.com

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    Quote Originally Posted by BenFenner View Post
    I've filled through the vent hole once. It works, it just takes 100 years for that grabby fluid to flow through such a small hoe. And the air has to also come up through it at the same time. No joke. It took 100 years.
    I figured as much.
    1997 Nissan 200SX SE-R - sold
    1998 Nissan 200SX SE-R - daily driver

  23. #23
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    I just got done changing my trans oil. MT-90 is hard to find locally. Got lucky and found some not too far away from me.
    1997 Nissan 200SX SE-R - sold
    1998 Nissan 200SX SE-R - daily driver

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    If I stripped the fill bolt, did I dun goof? Is there anyway I can get it out mostly stripped?

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    I stripped mine too, welded new stuff, still can't break it loose. I just now use the speedo sensor hole .
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    Guess I was lucky with mine. It came off real easy like.
    1997 Nissan 200SX SE-R - sold
    1998 Nissan 200SX SE-R - daily driver

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    Quote Originally Posted by Vadim View Post
    I stripped mine too, welded new stuff, still can't break it loose. I just now use the speedo sensor hole .
    Ha, Thanks. I'll have go back out tomorrow and check it out. I got it off a year or two ago, but this time it just wasn't having it.

  28. #28
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    My mistake was that I didn't heat it up with a torch first
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    Is that blue sealant stuff better than the white high temp stuff? When I changed my trans oil a few months back, I used the permatex high temp thread sealer. Now I have a slight leak, more like a drip coming from the drain plug. Should I switch to the blue stuff? I read that you are suppose to wait 24 hours before you fill with oil again. I didn't do that and filled up right away. Man I hate leaky cars.

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    I've never sealed the plug. It's never leaked.

  31. #31
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    i used ultra grey permatex and it worked perfect. i also lucked out and my filler plug came loose easy thank god.
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    I went with the high temp sealant again. This time i'll let it sit before I refill, until tomorrow afternoon this time. Hopefully this fixes the drip. Also I think I didn't have the plug tight all the way. It was kinda loose.
    Last edited by 97 SR20; 09-12-12 at 06:40 PM.

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    What is the proper size of the drain and fill plugs? My shop manual is on order.

    Thanks,

    J

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    You want the diameter and thread type for each plugs?
    Or do you want to know what size/type of tool you need to loosen and tighten the stock plugs?

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    Tool size please.

  36. #36
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    Good question Ben I'm gonna assume he just wants the tool size, considering the alternative. The size tap required to tap the drain is rather large and would probably cost as much as a used transmission! Although he could be looking to find replacements...in either case, I don't know

    Both plugs use a square drive. For the RS5F32V trans, I usually use a 1/2" drive breaker bar w/a 4" extension and for the fill plug, a 3/8" drive. It may not be a perfect fit...especially if someone else already boogered it up. I've seen attachments made specifically for these type plugs but never needed a set.

  37. #37
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    1/2" drive for the drain like mentioned above and I have the Nissport tool (similar to this) for the fill which is very nice to have but probably hard to find these days. Instead use a 3/8" drive as mentioned above but wrap it once or twice in an aluminum strip cut from a soda/beer can to take up the rest of the slack so you don't ruin the plug like so many have done.
    Last edited by BenFenner; 09-19-16 at 07:31 AM.

  38. #38
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    Ben, do you know the size of the drain hole square wrench? I tried the wrap the aluminum trick but was concerned about rounding the whole. I'd rather find the right tool.
    Last edited by nbs2005; 09-19-16 at 02:07 PM.

  39. #39
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    ...if you can't find any square bits, you can go this route.
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  40. #40
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    Quote Originally Posted by nbs2005 View Post
    Ben, do you know the size of the drain hole square wrench?
    I do not. It's probably some bullshit like 13mm square. Honestly the 1/2" drive of a breaker bar or similar is going to be close enough, and the hole is big enough that it being off by a little doesn't seem to matter. I'm pretty anal about these things, and I have done it this way many times without worrying about it.

    It's the fill/check plug I worry about.

 

 
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