MT82 Transmission Fluid Change - Mustang Evolution

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Old 06-11-2014, 10:52 PM   #1
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Exclamation MT82 Transmission Fluid Change

I swapped out the factory trans fluid this last weekend and took a few pics of the process for any other do-it-yourselfers.

What you'll need:
  • Royal Purple Synchomax off of American Muscle - $23 bucks a bottle. 2.7 quarts, so you need 3 bottles total. Some guys like redline or AMSOil, my car is an RP car.
  • 8mm Allen Wrench and/or Socket. I had an 8mm allen key already, and the socket was $3 at my local Advance Auto
  • Blue treadlocker. Another $5 at Advance Auto.
  • 3/8' diameter rubber hose - you'll need about 3-4 feet. $4 at Ace Hardware.
  • Ramps, jack, jackstands, oil drainpan, torque wrench (recommended), shop towels
  • An hour...maybe two

Get the transmission warm. Go for a quick drive to warm it up, but don't go beat on it...you'll be working right next to your cats and mid-pipe.

Get the car up. You want the car to be as level as possible in the air, so there isn't as much guess work with refilling the transmission later on.


Grab your 8mm allen wrench /socket, a few shop towels, and your oil drainpan. Crawl under and look for your transmission drain plug - they look like this:

The fill plug is on the passenger side of the transmission.


Remove the fill plug first. I couldn't get my socket in that tight spot, so I had to use my allen wrench.

Move your drain pan under the drain plug and loosen it, too. Heads up, the ford fluids smell pretty funky - it should be a dark reddish color. It'll take about 5-10 minutes to completely drain out, depending on how warm the fluid was.




After it's all drained out, replace the drain plug with a bit of the threadlocker. I tightened it to 20ft/lbs - not super super tight, but very snug -about as tight as you'd go with your oil drain plug.

At this point, you'll need get into your shifter assembly inside the car. This can easily be accomplished by pulling up on the cupholder liner - it should pop right up. Be careful to unplug the wires! Pull apart your shift boot so that you can see through down through the floor pan. I have an MGW shifter installed so I had to remove the NVH shield.
Inside the car:

Bottow view of the shifter assembly:

Feed the end of your tubing into the fill port. Get it in there snugly, you do not want fluid bleeding out of it all over your garage floor while you're in the car!


Remember, keep the tubing as straight as possible to make it flow into the transmission easily. Fluid flows best downhill, so angle it right to make your job easier and less messy.

OK, back inside the car. The tubing should fit snugly over the cap on the synchomax. Cut off the tip and stuff it into the tubing, and slowly turn it upside down. Keep an eye out, you do NOT want to cause a mess inside your car with this stuff. I recommend you keep a handful of shop towels nearby.


I recommend starting it for a minute, then stopping for a second to check to make sure you aren't missing the fill port underneath the car. I'm paranoid, I was checking to make sure it was all working about once every 2 minutes or so.

Once you're fairly certain it's working like it should, poke a small hole in the base of the RP bottle to get the fluid to drain easily. I used a good sharp knife. Each bottle only took about 3 minutes to empty.

Remember, you're supposed to only need 2.7quarts - only put in about 3/4 of the last bottle. Check to see how full your transmission is before putting any more in - if you stick your finger in the fill hole, the fluid level should be about half an inch below the opening. Mine must've been a bit thirsty, she took all 3 quarts with no issue.

Once you've got the fluid in, start putting the car back together. I tightened the top fill plug to the same ft/lbs as the drain plug. Replace your MGW NVH shield (if you've got one), and re-install your interior pieces. Try to avoid letting your oily tubing dump all over your interior

Some thoughts:
The car shifts very smoothly and positively. There is no vagueness with gear selection. I have had the MGW installed since last fall, I have the whiteline transmission bushing insert, and now the synchomax fluid swap. She goes into gear very easily and I never ever miss that 2-3rd WOT shift (much to the dismay of a number of the local 'maro and SRT8 guys). With the ford fluids, the transmission was a bit notchy when cold...that's completely gone. I highly recommend this fluid swap especially with a good aftermarket shifter.
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Old 06-11-2014, 11:06 PM   #2
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Awesome guide! I'll probably refer back to this when I get my MGW.
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Old 06-12-2014, 10:40 AM   #3
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This is a great write up! I'm glad to hear you got the job done.

This will be helpful to a lot of other members! Thanks for sharing.

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Old 06-12-2014, 04:02 PM   #4
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Very very helpful to me . Thank u
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Old 06-12-2014, 10:11 PM   #5
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Hey Dan,

If AM needs one, I can give this write up to yall to use with the RP synchromax. It's a simple copy/paste.

Also, gotta give credit where it's due. The hose idea I legit stole from another forum - Allfordmustangs.com username Checkmate. I had to dance around my MGW with the tubing though.
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Old 06-13-2014, 04:42 AM   #6
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Rynarok, well done (with pics!) I'll add a couple of my hints...I saved the OEM in a clean container in case of wtty issues (paranoia) and although they sell fill pumps that screw onto 1 qt containers for pumping fluid I took a 3-4' piece of tubing about 1/2" od that fit into the fill plug snaked it up through the engine compartment stuck it in the end of my funnel and filled it from the engine area. Also to get the .7 qt just remove 10 ounces from one QT and add the rest.

RedLine MTL is what my parts monger (CarQuest) got me they carry that in their warehouse and was in my small town the next day with no shipping.
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Old 08-10-2014, 10:44 AM   #7
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I did the fluid change this weekend but I used a pump to add the fluid. didn't have to depend on gravity from inside the car.
Amazon.com: Plews 55001 Lubrimatic Fluid Quart Pump, Fits Standard Quart Bottles: Automotive
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Old 08-14-2014, 12:43 PM   #8
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Anyone thinking about getting one of those bottle attached hand pumps, don't. Mine worked marginally one time, then the next time it barely worked.

Just get an electric fluid transfer pump. You'll find plenty of uses for it and they are not super expensive. Makes diff fluid and transmission fluid changes a breeze.
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Old 08-14-2014, 12:53 PM   #9
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tagging this for future use. Thanks a bunch for a great write up!
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Old 08-15-2014, 09:35 AM   #10
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nice write up man!!! I however wouldnt fill from inside my car, I used a hand pump under the car, a bit harder but less risk. none the less, great job and thanks!
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Old 08-17-2016, 12:13 PM   #11
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MT82 Transmission fluid

Well i found the one that works. Its called Liqui Moly 75w90 and is approved by Ford of Germany. Shifts super smooth. I have a single mass flywheel in my V6 now so its loud no matter what i do. no more shift issues. NVH is little to none now after 500miles.

---------- Post added at 01:13 PM ---------- Previous post was at 01:12 PM ----------

Well i found the one that works. Its called Liqui Moly 75w90 and is approved by Ford of Germany. Shifts super smooth. I have a single mass flywheel in my V6 now so its loud no matter what i do. no more shift issues. NVH is little to none now after 500 miles.
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Old 08-27-2016, 05:39 AM   #12
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Quote:
Originally Posted by BadCon View Post
Anyone thinking about getting one of those bottle attached hand pumps, don't. Mine worked marginally one time, then the next time it barely worked.

Just get an electric fluid transfer pump. You'll find plenty of uses for it and they are not super expensive. Makes diff fluid and transmission fluid changes a breeze.
I have been using a bottle hand pump for filling manual transmissions and rear ends for years. It works very well and I would recommend it to any one.

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Old 08-28-2016, 03:15 AM   #13
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I used Amsoil MTF with Motorcraft XL-18 additive with Amoil's pump that worked flawlessly. It shifts much better & eliminated the cold 'crunch' but gear whine increased which I hear is common. I plan on changing again with 2 QTs MTF (Synchromesh), .7 MTG (GL4) & the XL-18 MT82 additive.
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Old 08-28-2016, 08:36 AM   #14
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Where did you get this xl 18 stuff?

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Old 08-28-2016, 09:11 AM   #15
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Where did you get this xl 18 stuff?

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Any Ford dealer can get it........

http://www.fordpartsgiant.com/parts/...odi_xl-18.html
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Old 09-14-2016, 03:01 PM   #16
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I changed fluid today with 2 QTs of Amsoil MTF, .7 MTG & XL18. Still shifts smooth & the whine seems a little quieter. Seems like a good compromise....
This was a tip from Ben Calimer.
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Old 09-14-2016, 03:24 PM   #17
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Nice guide I did mine on a lift. Would be nice if Ford put the fill at the top of the tranny, with an access panel somewhere on the tunnel, jmo. I ended up using 3 qts. accounting for the small amount spilled and in the hose itself.
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Old 09-18-2016, 01:14 AM   #18
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Very helpful post. Thanks!
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Old 09-21-2016, 05:37 PM   #19
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I used an amsoil fluid pump and did it all from under the car. It's really not that hard to get to the fill port tbh
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Old 09-26-2016, 08:03 AM   #20
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Awesome guide! I did the gravity fed method and had no issues. Shifting is night and day difference, wish i would have done this sooner.
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Old 04-15-2017, 10:53 PM   #21
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MT82 Transmission Fluid Change

Using a transfer pump which costs about $10 is easier than having to disassemble the center console. That shifter boot is a pain to put back on. With the pump you can fill it from under the car.

Great guide though. I was curious to see how people filled it through the shifter.


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Old 04-16-2017, 07:56 AM   #22
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In 100% agreement. Changed mine twice with the Amsoil pump.

Quote:
Originally Posted by Boss302PR View Post
Using a transfer pump which costs about $10 is easier than having to disassemble the center console. That shifter is a pain to put back on. With the pump you can fill it from under the car.

Great guide though. I was curious to see how people filled it through the shifter.


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Old 04-17-2017, 02:54 PM   #23
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That gear oil stinks if you end up spilling any inside your car interior. I vote for the pump from underneath method.
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Old 08-06-2017, 05:12 PM   #24
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Just changed mine with Royal Purple

I just changed mine in my 2012 GT 6 spd with Royal Purple and it shifts much smoother I used a pump from Harbor Freight i bought for approx $7.00 and it worked great. It has in and out hoses and a plunger pump. Great pump for the money. I would recommend that you remove the filler plug not just loosen because when draining the fluid in gurgles and splashes making a mess otherwise.
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