Differential fluid change - do I need friction modifier?

[pirate air]

Red Line Synthetic Oil - Gear Oil for Differentials - 75W140 GL-5 Gear Oil

Contains additional friction modifiers for suitablity with clutch-type limited slip differentials - for most LSDs, no additional friction modifiers are required

 

[Madcowranch]

Red Line Synthetic Oil - Gear Oil for Differentials - 75W140 GL-5 Gear Oil

Contains additional friction modifiers for suitablity with clutch-type limited slip differentials - for most LSDs, no additional friction modifiers are required

Look 2 lines down on the left, *******.

 

[pirate air]

Look 2 lines down on the left, *******.

You mean this part, the last sentence specifically?
Contains additional friction modifiers for suitablity with clutch-type limited slip differentials - for most LSDs, no additional friction modifiers are required

 

[Madcowranch]

You mean this part, the last sentence specifically?
Contains additional friction modifiers for suitablity with clutch-type limited slip differentials - for most LSDs, no additional friction modifiers are required

Red Line Synthetic Oil - Gear Oil for Differentials - 75W140 NS GL-5 Gear Oil

 

[Wilson]

She likes it slippery

 

[Ruger]

There's a sweet spot in everything, Wilson. Too slippery and she might not know you're there!

OK, this is serious. We have conflicting guidance on this and some of us are maintenance freaks. We need to get an official reading from Ford. HOW???

 

[pirate air]

You mean this part, the last sentence specifically?
Contains additional friction modifiers for suitablity with clutch-type limited slip differentials - for most LSDs, no additional friction modifiers are required

Red Line Synthetic Oil - Gear Oil for Differentials - 75W140 NS GL-5 Gear Oil

I see, didn't know they made vintage fluid for vintage applications.

 

[Madcowranch]

I see, didn't know they made vintage fluid for vintage applications.

...for vintage geezers like me and Ruger.

 

[Yukon Joe]

Might as well use vinegar and water your rear end!

Yukon Joe
www.RUNRAPTORRUN.com

 

[Wilson]

I thought it was sawdust