Gear Lube with Friction Modifier

[doliver]

I will be installing a Mag-Hytec cover and changing the lube in the rear end in the near future and was planning on using 75W90 Amsoil. I understand that Amsoil has Friction Modifier in it already and that our AA Limited Slips do not require Friction Modifier. I also understand that the LS units are not the Clutch type units. So, my question is can I use the Amsoil without any problems?

 

[rbattelle]

Yes, there should be no problem running an oil that already contains the limited slip additive.

 

[dieselpilot1969]

I've been running rp 75/140 rear 75/90 f for 20k no problems