synthic differential fluid question?

[mikesoc82]

i was thinking about changing over to moble 1 synthic differential fluid.. anyone have any experence with it. im gonna switch to it after i get all new seals done.

[AllTheGoodNamesAreGone]

ehh.. be carefull with that.. may want to look around over at ls1.com or ls1tech..

just becuase you may or may not want to use the GM friction moddifier.. not to sure how it would work out with synthetic stuff..

[98Camaro3.8]

I used Mobile 1 gear oil when I installed the LSD. No problems at all. [img]smile.gif[/img]

[memphis_raines]

I just changed mine yesterday, and I used Lucas synthetic. I'm going in the morning to pick up the LSD additive from the dealership.

[chas]

the zexel-torsen differential doesnt require the additive but it wont hurt it either.

[AllTheGoodNamesAreGone]

Originally posted by chas:
the zexel-torsen differential doesnt require the additive but it wont hurt it either.

u sure??

when we looked it up in the set of service manuals we have it said to get some..

is zexel what we get with the y87??

[quick99]

Originally posted by mikesoc82:
i was thinking about changing over to moble 1 synthic differential fluid.. anyone have any experence with it. im gonna switch to it after i get all new seals done.

I have had the moble 1 in my rear for well over a year with no problems whatsoever.

[chas]

Originally posted by AllTheGoodNamesAreGone:
u sure??

diff info by dominic

[memphis_raines]

That's what I was wondering. I don't have any kind of factory performance package, but my car came with the LSD.

[imported_admin]

Both Mobil 1 and Redline 75W90 gear oil include friction modifier.

BUT...

The effects of the pre-added stuff is minimal.

ALL limited slip differentials should use GM friction modifier. A bottle is only like $6 from Thunder. Its in their drivetrain section.

For our cars we both have Zexel-Torsen T2's with 2 quarts Redline 75W90 synthetic gear oil + 1 bottle GM friction modifier.

As usual with lubricants, organic is for low-performance passenger cars, synthetic is for high-performance F-Bodies. For the few bucks more it costs and as rarely as you swap, there really is no reason to not use synthetic, either Mobil 1 or Redline.

[zlexiss]

From other thread:

From Torsen's FAQ page:

Is it true that the Torsen unit in the production Camaro needs the GM modifier added?
(cut)
When replacing the fluid it is at the owner's discretion whether or not to add the modifier.
(cut)

[memphis_raines]

It's only about $8 or $9 a bottle, even from a dealership, which is a drop in the bucket compared to the money I've put into my car. Whether someone says to do it or not, it couldn't hurt. So just do it and be done haha

[imported_admin]

Originally posted by zlexiss:
From Torsen's FAQ page:

Is it true that the Torsen unit in the production Camaro needs the GM modifier added?
(cut)
When replacing the fluid it is at the owner's discretion whether or not to add the modifier.
(cut)

I will say again.

ALL GM vehicles equipped with a limited slip differential should ALWAYS use a bottle of GM limited slip additive.

[CANTONRACER]

I will use syn oil in my engines, but I just do not trust the stuff in my diff or tranny. I have had some weird issues with the stuff.

[imported_admin]

"Weird issues"? Mobil and Redline are the two premiere lubricant companies in the world. They have more chemists dedicated to constantly working on newer and better formulas than you can shake a stick at. They know what they're doing... and their fully-synthetic fluids are top-notch. They resist far more heat than organic, have a lifespan two to three times as long, and don't break down under extreme stress (like a burnout) like regular lubricants do.