Differential Servcie
Thread Starter
Instructor
Joined: Jul 2005
Posts: 159
Likes: 27
From: Sacramento CA
Differential Servcie
I am going to change the oil in my differential today with Red Line Oil. Do I need to add the limited slip additive? If I do, I would probably use the Redline additive. How much should I use.
Thank you
Thank you
Team Owner
Joined: Dec 1999
Posts: 174,312
Likes: 1,217
From: Here
Pilot of Beer Force 1
Tampa Regional Coordinator
CI 4-5-6-7-8 Veteran
Organizer St. Jude Fundraiser
I believe in the Beer Fairy
I know AMSOIL has the additive already in it..not sure about Redline
Le Mans Master
Joined: Aug 2000
Posts: 5,294
Likes: 2
From: Suffolk, Long Island NY
Collections Hold
Joined: Aug 2002
Posts: 2,899
Likes: 6
From: Fort Wayne Indiana
If you have a stock differential w/ stock clutch pack components, then simply changing the lubricant to a synthetic one that has the friction modifier pre-blended in it will suffice just fine and no additional FMA is required for 99.9% of the market using stock differentials. 
Premium Supporting Vendor
Joined: Aug 2001
Posts: 5,364
Likes: 38
From: King George VA
Actually, Redline makes two versions of the 75w90, one with friction modifer, one without. The Redline 75w90 has friction modifier, the Redline 75w90NS does not. So... the answer to your question depends on which one you bought. 
__________________
C66 Racing #66 NASA ST2, SCCA T2
AMSOIL Dealer (Forum Vendor)
AMSOIL Preferred Customer Program (Members buy at Wholesale - a savings of about 25%)
C66 Racing #66 NASA ST2, SCCA T2
AMSOIL Dealer (Forum Vendor)
AMSOIL Preferred Customer Program (Members buy at Wholesale - a savings of about 25%)
