Lucas gear oil = no sure grip additive req'd?

[eagleone1983]

I was reading the bottle of Lucas brand gear oil I bought and it said no "posi" additive required. I just wanted to make sure nobody has had problems not adding anything to thier oil, thanks.

 

[sicksatellite]

I believe the Lucas gear oil has the friction modifier in it already.
But for Friction modifier, the best stuff i've found over the years is the ford motorcraft stuff