Educate me on rear end gear oil....
Thread Starter
Registered User
Joined: Jul 2000
Posts: 2,735
From: Buffalo, NY
Educate me on rear end gear oil....
I know absolutely nothing about gear oil, additives, selection, best type, brand prefrence etc.
Could someone fill me in with all they know?
I plan on changing mine soon and wanted to have a good background on it before I went and made a decision.
Isnt there a type that is good for rearend shock too?
Could someone fill me in with all they know?
I plan on changing mine soon and wanted to have a good background on it before I went and made a decision.
Isnt there a type that is good for rearend shock too?
Registered User
Joined: Feb 2002
Posts: 479
not that i "know" anything about htis really, or which is best, but when i change mine i just go to the gm dealership and buy it. 2 bottles of the oil and one bottle of the additive. you could go synthetic if you wanted to. thats it really. 
Registered User
Joined: Nov 2000
Posts: 2,734
From: Kansas City suburb of
Mobil 1 synthetic and 1 bottle GM additive.
The only synthetic I run in my car, I would run syn in the motor but I have to many miles.
I have been running the same lube in the rear end since the gear swap was done and a couple days ago I changed it and fixed a gasket leak and the gears looked excellent.
The only synthetic I run in my car, I would run syn in the motor but I have to many miles.
I have been running the same lube in the rear end since the gear swap was done and a couple days ago I changed it and fixed a gasket leak and the gears looked excellent.
Administrator
Joined: Mar 1999
Posts: 3,664
From: Brunswick, Maine 04011
If you have an Auburn posi, do NOT use synthetic fluid.
2.) What kind of oil should be used with an Auburn differential?
It is important when installing Auburn differentials that a high quality, non-synthetic 80w90 GL-5 oil, treated with GM or Ford limited-slip additive (also known as friction modifier) be used. Three ounces of additive will treat one quart of oil.
2.) What kind of oil should be used with an Auburn differential?
It is important when installing Auburn differentials that a high quality, non-synthetic 80w90 GL-5 oil, treated with GM or Ford limited-slip additive (also known as friction modifier) be used. Three ounces of additive will treat one quart of oil.
Registered User
Joined: Jan 1999
Posts: 842
From: Paris, Texas
Originally posted by revtime
Mobil 1 synthetic and 1 bottle GM additive.
Mobil 1 synthetic and 1 bottle GM additive.
Registered User
Joined: Aug 2002
Posts: 986
From: texas
Administrator
Joined: Mar 1999
Posts: 3,664
From: Brunswick, Maine 04011
I'm using no name gear oil in my Moser along with GM additive. I change it every year whether it needs it or not. This is my third season racing and driving on the 12 bolt with no problems so far.
Registered User
Joined: Apr 2003
Posts: 121
From: South Carolina
Originally posted by tnthub
If you have an Auburn posi, do NOT use synthetic fluid.
2.) What kind of oil should be used with an Auburn differential?
It is important when installing Auburn differentials that a high quality, non-synthetic 80w90 GL-5 oil, treated with GM or Ford limited-slip additive (also known as friction modifier) be used. Three ounces of additive will treat one quart of oil.
If you have an Auburn posi, do NOT use synthetic fluid.
2.) What kind of oil should be used with an Auburn differential?
It is important when installing Auburn differentials that a high quality, non-synthetic 80w90 GL-5 oil, treated with GM or Ford limited-slip additive (also known as friction modifier) be used. Three ounces of additive will treat one quart of oil.
Got rid of the synthetic and now all is fine. Good in engines, not in trannies and rears.
Registered User
Joined: Mar 2001
Posts: 3,376
From: Sarasota FL
Originally posted by tnthub
If you have an Auburn posi, do NOT use synthetic fluid.
2.) What kind of oil should be used with an Auburn differential?
It is important when installing Auburn differentials that a high quality, non-synthetic 80w90 GL-5 oil, treated with GM or Ford limited-slip additive (also known as friction modifier) be used. Three ounces of additive will treat one quart of oil.
If you have an Auburn posi, do NOT use synthetic fluid.
2.) What kind of oil should be used with an Auburn differential?
It is important when installing Auburn differentials that a high quality, non-synthetic 80w90 GL-5 oil, treated with GM or Ford limited-slip additive (also known as friction modifier) be used. Three ounces of additive will treat one quart of oil.
Registered User
Joined: Nov 2001
Posts: 2,985
From: In a house by the bay
Originally posted by 96-speed
I use Royal Purple because that's what Mindgame uses, and he is much smarter than I am - his car is pimp too.
Hey at least I'm honest!
Ryan
I use Royal Purple because that's what Mindgame uses, and he is much smarter than I am - his car is pimp too.
Hey at least I'm honest!
Ryan
This has been a "no laugh" day up til this thread.... thanks.
Yep, I use RP in everything... always have and always will. And my past stuff has been pretty brutal on parts.
-Mindgame