Ford Additive Friction modifier. Should I add all 4 ounces?

[zeteckat]

Would it hurt to add all four ounces rather than just two ounces of the ford friction modifier to my transaxle? Just want to make sure of this so that i don't cause any damage. Thanks.

[pgtatx]

I added 2oz. like I was told...not sure what adding 4oz would do...