Is there more than 1 type of the fm for the tranny cocktail? Stopped by the dealer to pick some up while in the area but I did not have the part number supplied in the FAQ section. The tech at the parts counter was cluless as to why I would want to put it in a 99 SE MTX. Basically I want to be sure I have the right stuff

Motorcraft Additive Friction Modifier
4oz bottle
closest thing to a part number on the back is XL-3 Ford Internal Ref No. 137219, says it is used for limited slip diff. Do I have the correct fm?

Thx for help in advance


99 SE Contour,V6, MTX
MODS
KKM,Res rmvd
Fog light fix
Throttle Hang fix
Panasonic CD head unit
4/ Sony X plode 6x9
Jensen 300w amp