Possible Silver Bullet for MT82 Shifting Issues? - Mustang Evolution

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Old 09-25-2013, 02:37 PM   #1
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Possible Silver Bullet for MT82 Shifting Issues?

Hi Everyone,

I was searching Mustang info in another forum, yes I know that's bad.. I am still loyal to ME, but anyway there seems to be a huge response to a transmission additive from Ford called XL-18. It seems to resolve for at least a few, some of the shifting issues we have been experiencing. Anyway I tried to get this stuff in Canada, but had no luck. For further details head on over to the forum for info.

MT-82 Transmission Additive Update - Ford Mustang Forums
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Old 09-25-2013, 03:07 PM   #2
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Good to know!
A lot of threads about the mt-82 lately
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Old 09-25-2013, 04:10 PM   #3
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There is a very simple fix out there now for the MT82. It's the 6R80.
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Old 09-25-2013, 06:38 PM   #4
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Or the Tremec Magnum XL.. But that will be after my warranty and after the MT82 craps out.
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Old 09-26-2013, 09:19 AM   #5
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Watch that little bastard outlast your warranty, your interest and the car itself, now.

The MT82 is far from the worst MT Ford has put in a Mustang. At least you can do some things to improve it's performance on the cheap. Shifter mount, Whiteline insert, aftermarket shifters, different shift knobs, better clutch line and clutch, fluid changes. There is nothing quite like having a big V8 with a manual behind it.

I am on MT82 Redux but, I quite like the gear match in the MT82 with the Coyote motor. I'll be sticking with it, despite the trouble it`s caused me. #2 is a little more rackety but, is holding together just fine, even at the strip on slicks.
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Old 09-27-2013, 08:30 PM   #6
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Then stuff a big V8 in there lol
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Old 09-28-2013, 12:54 PM   #7
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Has anyone ordered the motor craft xl-18 online? Please post a link if you have.
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Old 09-28-2013, 06:39 PM   #8
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Quote:
Originally Posted by HPFury View Post
Has anyone ordered the motor craft xl-18 online? Please post a link if you have.
My Quicklane Manager friend is looking into obtaining a bottle of XL-18 for my first service appt next month. He's laid back a couple quarts of Lucas 75W-140 Differential/Transmission Gear Oil and a bottle of XL-3 Friction Modifier for the differential service as well. May help quiet that slight whine I hear at interstate speeds.
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Old 09-28-2013, 09:58 PM   #9
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How much does he plan to pour in ? Whole bottle or just 27 ml? Thanks .
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Old 09-29-2013, 10:48 AM   #10
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Originally Posted by HPFury View Post
How much does he plan to pour in ? Whole bottle or just 27 ml? Thanks .
27 mL (0.91 fl oz) IS the whole bottle.

NOTE TO EVERYONE:

Don't get confused in comparing XL-18 to XL-3. In reading other forums about the XL-18 MT-82 Additive, I found that it may be confused with XL-3, which is the (4 oz) Friction Modifier for our differentials. On AllFordMustangs forum, I ran across this 8-21-2013 post from Deysha, a Ford Service Rep...

Hello members,

Better late than never, right?

The XL-18 is a production additive added to the transmission when it’s built and does not need to be replenished. The correct customer/dealer part number is XL-3, which is what they speak of on the chart. Your Service Manager will always be in the best position to assist with any service questions you may have.

Deysha
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Then later (8-23-2013) on in the thread (when members questioned the Ford part number difference), she posted this:


Hey guys,

I checked on those part #s before posting them. It’s listed as a friction modifier on Ford Parts, and the customer part number is XL-3. The plant part number is XL-18.

BTW, Thanks, Grimace427!

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Old 09-29-2013, 11:32 AM   #11
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The photo is of some paperwork that comes with XL-18. Naphtha? (Lighter Fluid/Solvent) Naphthalene? (Main ingredient in Mothballs/Solvent) Looks like a bunch of solvents. How would that help?
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Old 09-29-2013, 11:41 AM   #12
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I would suggest the solvents are a dispersant for the main ingredient, which is quite similar to phosphate coating used on gearsets for reduced friction and wear.

Fricmod is designed primarily to reduce friction and stiction a touch. The back blade is reduced fluid life, typically.
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Old 09-29-2013, 11:54 AM   #13
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Quote:
Originally Posted by 5LHO View Post
I would suggest the solvents are a dispersant for the main ingredient, which is quite similar to phosphate coating used on gearsets for reduced friction and wear.

Fricmod is designed primarily to reduce friction and stiction a touch. The back blade is reduced fluid life, typically.
Wouldn't the XL-18 further thin the fluid? I think the DC fluid Ford uses is a straight 75W. The original fluid used was a 75W/90, I think. I'm not getting a warm and fuzzy about thinning the fluid any further. Frankly, I've never been overly concerned about cold weather shifting. I always take it easy until the tranny warms.
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Old 09-29-2013, 12:06 PM   #14
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It's more complex than just changing the viscosity through the solvents, etc. It's changing the main chemistry of the fluid. The long chain molecules add significant shear strength to the fluid, regardless of what they do to its pour point or viscosity.

DCT is thin, but shear strength is high, like ATF. Has to be, because of a how a dual clutch trans works. You have multiple gears selected at one time.
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Old 09-29-2013, 12:39 PM   #15
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Quote:
Originally Posted by Missouri Hoss View Post
Wouldn't the XL-18 further thin the fluid? I think the DC fluid Ford uses is a straight 75W. The original fluid used was a 75W/90, I think. I'm not getting a warm and fuzzy about thinning the fluid any further. Frankly, I've never been overly concerned about cold weather shifting. I always take it easy until the tranny warms.
The additive is meant to help shifting in general, not just cold weather.
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Old 09-29-2013, 01:49 PM   #16
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The additive is meant to help shifting in general, not just cold weather.
Noted.
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Old 09-30-2013, 08:05 PM   #17
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Amsoil MTF, forget the MC stuff.
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Old 09-30-2013, 08:08 PM   #18
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Ordered the motor craft xl-18 today from the dealer. Had to pre-pay a little under $25 for special order. No clue when it will come in because they ordered it from Ford. Will post how long it took.
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Old 10-06-2013, 09:23 AM   #19
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mt82 fluids

My recent experience is that this combo of dual clutch fluid and the 9oz of friction modifier works well.
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Old 10-17-2013, 08:38 AM   #20
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Just a heads up, XL-18 is now available on fordparts.com for $22.
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Old 10-17-2013, 07:33 PM   #21
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Has anyone used the xl-18 friction modifier with their existing mt82 fluid? I am having second thoughts of putting it in. I want to wait until I start having issues. No issues with it it right now.
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Old 10-19-2013, 08:24 AM   #22
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I'd say many of us have been using XL-18 already. The link below is a Motorcraft Transmission Fluid quick reference chart that according to "NOTE 6" calls for adding a full bottle of XL-18 to complete fluid changes in all 2011-2014 MT-82s. That tells me (at least) the 2014 MT-82 was factory filled with the DC Fluid and XL-18 additive. The chart date is June 2013.


https://www.fcsdchemicalsandlubricants.com/Main/quickref/mantrans.pdf
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