MT-82 Transmission Additive Update - Ford Mustang Forum
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post #1 of 269 (permalink) Old 08-26-2013 Thread Starter
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MT-82 Transmission Additive Update

I have put about 250 miles on my car since adding the XL-18 additive to my MT-82. The transmission is still shifting flawlessly.
For those that didnít read the original thread board member JAJ5Point0 diligently dug out the 2013 Motorcraft Transmission Fluid chart which mentioned (note 6) an additive (XL-18) that should be added to the MT-82 transmission. I seem to be the first one to try it and the results have been nothing short of phenomenal.
Prior to this I had installed the Barton two post bracket (it helped a little) and switched to Redline (it helped a little). With the new information from JAJ I switched back to the stock dual clutch fluid and added the 0.9 oz of XL-18.
The results have been amazing. The notchiness is gone Ė the gear nibble is gone. On a cold morning I can shift directly into second like butter where before I had to leave second out of the shifting pattern for 10 minutes.
I would assume (and correct me if Iím wrong) that if you are still running the stock tranny fluid all you would have to do is dump the additive in Ė since itís only 0.9 oz I canít image you would have to drain any existing fluid but once again Iíll leave that to the gear heads.
I would really like to hear from some more members that have tried this additive so I donít think this is just an anomaly.

Harvey

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Thanks also for the pictures/part number. I use the CHE-K member with torque arms to help with motor/tranny alignment and have had no shifting issues without this additive, using the stock trans fluid, but I live sunny California so "really cold" issues don't bother my tranny.

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where can it be purchased
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post #4 of 269 (permalink) Old 08-26-2013 Thread Starter
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Quote:
Originally Posted by twistid View Post
where can it be purchased
My mechanic had to special order it from Motorcraft - at first they were clueless and Ford is still clueless.

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my ford service manager just e mailed me - they have it on order - took 2 weeks for them to figure out what I was talking about - the pictures really helped thanks
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After reading the posts on MT-18; I went to the local ford dealer and inquired about MT-18 for my MT_82 trnny--I was told that MT-18 is only for differentials, not trannies. So, I am confused about how thi stuff works in the tranny when it is for the diff.. This whole thread is confusing--Is there 2 different MT-18's? I doubt it but it sounds like there is. Why do some guys use it and not others?--Even the Ford reps say different things..
Another thing: if this additive is so good for the acheing MT-82 transmission, why isn't it pushed by Ford--It seems like they (Ford) wou do anything to get rid of al the complaints about the MT-82 tranny. So can anybody really step up and give me the level scoop on this subject??
Don't mean to be a pia. but trying to satisfy my own mind of whats good and what can harm my car..
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post #7 of 269 (permalink) Old 08-26-2013 Thread Starter
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Quote:
Originally Posted by Hpsht3 View Post
After reading the posts on MT-18; I went to the local ford dealer and inquired about MT-18 for my MT_82 trnny--I was told that MT-18 is only for differentials, not trannies. So, I am confused about how thi stuff works in the tranny when it is for the diff.. This whole thread is confusing--Is there 2 different MT-18's? I doubt it but it sounds like there is. Why do some guys use it and not others?--Even the Ford reps say different things..
Another thing: if this additive is so good for the acheing MT-82 transmission, why isn't it pushed by Ford--It seems like they (Ford) wou do anything to get rid of al the complaints about the MT-82 tranny. So can anybody really step up and give me the level scoop on this subject??
Don't mean to be a pia. but trying to satisfy my own mind of whats good and what can harm my car..
First of all you a quoting the wrong part number - the additive is XL-18 not MT-18 (see the images I provided).

Harvey

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whats the cost for a bottle? I have redline in there now, so Ill have to switch to the QDC dual clutch fluid, which that **** expensive!

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my dealer quoted me 34 per bottle and it is for transmission for sure as listed on the bottle

also it is pretty new - I would guess ford has done the research since it is listed under a ford part number
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post #10 of 269 (permalink) Old 08-26-2013 Thread Starter
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Quote:
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whats the cost for a bottle? I have redline in there now, so Ill have to switch to the QDC dual clutch fluid, which that **** expensive!
The XL-18 cost me about $39 but replacing the Redline with the stock dual clutch fluid cost about another $100.

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Quote:
Originally Posted by harveyshepherd View Post
I have put about 250 miles on my car since adding the XL-18 additive to my MT-82. The transmission is still shifting flawlessly.
For those that didnít read the original thread board member JAJ5Point0 diligently dug out the 2013 Motorcraft Transmission Fluid chart which mentioned (note 6) an additive (XL-18) that should be added to the MT-82 transmission. I seem to be the first one to try it and the results have been nothing short of phenomenal.
Prior to this I had installed the Barton two post bracket (it helped a little) and switched to Redline (it helped a little). With the new information from JAJ I switched back to the stock dual clutch fluid and added the 0.9 oz of XL-18.
The results have been amazing. The notchiness is gone Ė the gear nibble is gone. On a cold morning I can shift directly into second like butter where before I had to leave second out of the shifting pattern for 10 minutes.
I would assume (and correct me if Iím wrong) that if you are still running the stock tranny fluid all you would have to do is dump the additive in Ė since itís only 0.9 oz I canít image you would have to drain any existing fluid but once again Iíll leave that to the gear heads.
I would really like to hear from some more members that have tried this additive so I donít think this is just an anomaly.

Harvey
I have the owners guide for my 2013 Mustang GT which is the 2nd printing and I don't see anything in the Technical Specifications calling out for the XL-18 additive so I am a little confused. Can somebody post a pdf or a picture of 2013 Motorcraft Transmission Fluid chart?

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You can ignore my previous reply. I found the chart in the original post.

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What if i don't have the factory fill but another brand, you talking about draining that refilling with ford stuff just put that .9 oz in?

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post #14 of 269 (permalink) Old 08-26-2013 Thread Starter
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Quote:
Originally Posted by Kona stang10 View Post
What if i don't have the factory fill but another brand, you talking about draining that refilling with ford stuff just put that .9 oz in?
I'm certainly not a chemist - I'm only reporting what I did and what the results were for me.

Harvey

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This is Great Info for those of us with the 3 Pedal Stangs!!.......Thanks for the info and Pics. Harvey

Sean

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