I, too, would like to know more. I love virtually everything about my 2011 except for the frustratingly awful 1-2 shift I often experience and the rough, notchy shifter articulation.

 

Redline transmission fluid is awesome. I swapped out the factory fill on my 370Z for the MT-85 and the difference was night and day. Very smooth operation in all temperatures.

 

I can only tell you it was "Ford Friction Modifier". I'll look on the receipt again tomorrow but don't think there was a part number.

 

i wonder if that could be used on my Focus...

 

While this all sounds great and its nice you're satisfied with the upgraded performance of the trans, I'm just wondering what the long term effect is if any. I would certainly hope this "modified" lubricant mix wouldn't cause premature trans wear/failure. Just a thought.

 

Perhaps you wouldn't mind calling your service manager and getting the detail for us? It seems like everyone is interested now. What part number is was and how much was put in? Was any other fluid drained before topping up? etc.

Thanks

 

According to my repair sheet, the part was FMC XL3. Which equates to Ford's Motorcraft XL3 Limited Slip Friction Modifier.

 

That's why I'm recommending we all bring the cars into the dealer and let FORD diag the issue and (if necessary) add the friction modifier vs. OWNERS doing it ourselves. We are all within the warranty period. If anything goes wrong, you wouldn't want a dealer implying it was because of something YOU added to the tranny fluid. This should all be documented. There is a VERY VERY exact mixture of fluid/friction modifier used in the rear end... only Ford knows what that mixture is for the transmission.

 

I have to 100% agree with this. This additive is only meant to be used, in very, very small quantities in differentials. If you have a transmission failure, and they tear it open and can someone test to find out there was friction modifier in there, that you added yourself..I can see them denying the warranty claim without a second though.

 

Interested to see if this becomes a TSB in the near future.

 

This sounds promising. Thanks for the input.

 

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Wow. It's even better today. I'm really flabbergasted. The shifter had some slight notch going into 2nd this morning for MAYBE the first 2 shifts... but it was 39 degrees out here this morning. Then, loose as a goose. No joke: you can shift it with your pinky. The car is SO much more enjoyable to drive now. In fact, it makes me want to get a steeda shifter but I'm going to wait a while to make sure this REALLY did fix the problem once and for all.

 

Now you're just torturing us.

 

LOL. I'm so happy with this car now. Sorry!!!!! It actually feels like I took delivery all over again!

 

Ford, issue a TSB please. Maybe they won't afterall, it's more costly for them to have everyone bring in their 5.0 'Stangs under a TSB, they'd rather have you bring in the car under warranty on a one to one basis through their dealership networks.

 

Has anyone else had this done and it worked? My transmission has a very slight Supercharger whine occasionally and the lockout at high RPMS..
Im just wondering if this additive will stop the whine? And I dont mean from me ..

 

 

Take it to the dealer. The additive or QDC helps with notchy shifts, not whine. FYI, some VERY slight whine is normal in most manual transmissions.

 

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