what should i use for Limited slip fluids

[red240sx sr20det]

I just got a skyline limited slip differential for my 240 and its needs fluids or lubricants what should i use? or what is the best. thanks

[Cornloaf]

I use Redline - Whatever you use, make sure it is synthetic if you want the best

[red240sx sr20det]

http://www.redlineoil.com/prod...ID=20 so whould i use this stuff

[goofynick6]

Just regular stuff...a viscous lsd (I'm assuming that is what is) uses regular fluid; the viscous fluid is contained in the differential and doesn't get changed.

Nick

[blues14]

use mobil 1 full synthetic at oem specified weight.

[Cornloaf]

That is the stuff i use, but then again i have nismo 2 way. I'm sure quality stuff wouldn't hurt.

[Ramius83]

The Aussies on the Skylinesaustralia forums seem to swear by the Redline Heavyweight Shockproof fluid for the differential....

[Joe]

That is the stuff i use, but then again i have nismo 2 way. I'm sure quality stuff wouldn't hurt.

synthetic fluid is DEATH to a clutch type differential. i would never run that stuff on a clutched diff that sees track time.

[red240sx sr20det]

it is a stock limited slip out of a skyline also if im not supposed to use synthetic what do you suggest?
Modified by red240sx sr20det at 12:08 AM 4/22/2005

[Joe]

viscous diff (whats in the nissans from the factory) and a clutch type are different things. youll be fine using synthetic.

[Cornloaf]

What do you suggest I use then? Maybe I should have researched this more. I was just going off what the guy i bought it from told me. And I use Redline in my engine too so i just figured that would be fine. guess not, but thanks for the heads up

[Joe]

myself and the majority of friends who have 2 ways use lucas non synthetic heavy duty gear oil. if you are rich, you can run kaaz oil but its 40$ a bottle (takes 1 bottle to fill diff) the lucas stuff works great, its a little noisy but works. just dont use synthetic. the synthetic stuff coats the plates and causes locking problems in the diff.

[Cornloaf]

Thhanks a ton - I will get some today since I haven't changed diff fluid in a few months.

[WDRacing]

LUCAS oil is the way to go. I use Lucas in everything...to include my Skyline when I was oversea's. Used it for about 3 years with no problems.

[red240sx sr20det]

so just put lucas gear oil in i just got it tonight and i was told to use the shockproof but

[Carl H]

myself and the majority of friends who have 2 ways use lucas non synthetic heavy duty gear oil. if you are rich, you can run kaaz oil but its 40$ a bottle (takes 1 bottle to fill diff) the lucas stuff works great, its a little noisy but works. just dont use synthetic. the synthetic stuff coats the plates and causes locking problems in the diff.

huh, are you sure about that?im running redline gear oil in my diff (75w85 or something like that), and i was told that i should run syn. in my ats rear end.all the guys on dgtrials run syn....dont use shockproof in a clutch rear end, that will really mess it up, but regular syn is ok.ive had no problems with my rear end, just let it warm up like you are supposed to and it locks fine.

[red240sx sr20det]

so when you say warm up what do you mean? and i should just use some lucas or redline and what weight? sorry guys ive never had a lsd and i dont want to break it

[Ramius83]

As I said earlier. The Austrailian boys mostly prefer the REdline Shockproof in their diffs and trannies. They use the heavyweight for the diffs and the lightweight for the trannies....

[Joe]

huh, are you sure about that?im running redline gear oil in my diff (75w85 or something like that), and i was told that i should run syn. in my ats rear end.all the guys on dgtrials run syn....dont use shockproof in a clutch rear end, that will really mess it up, but regular syn is ok.ive had no problems with my rear end, just let it warm up like you are supposed to and it locks fine.

kaaz absolutley reccomends against it, the synthetic molecules are smaller so they prevent locking of the plates as well as a dino based oil. this is from kaaz, ive obviously never tested it. there were 5 cars today drifting here at a road course running the heavy weight lucas, including myself, nobody had any differential problems.

3rd post downhttp://www.drifting.com/forums....html

i assumed this is for all clutch based diffs, but i may be wrong.
Modified by Kamin at 8:37 PM 4/24/2005

[red240sx sr20det]

so basicly just a heavy weight gear oil or a redline syn lightweight

[Carl H]

yeah i would say that just run the regular redline oil, not the shockproof as it has some kind of chemical in it that makes the clutches too slippery.for the break in use the gear oil that comes with the differential, i used the can of stuff that came from ats.syn gear oil works fine, they just want you to pay out the *** for their oil.when i say warm up, i mean just that my diff works so much better and is much more predictable when it has warmed up (ie driving for about 10 min) not sure if any of the others do this but this is how mine reacts.actualy now that i think about it i should change my rear end oil soon......

[red240sx sr20det]

Hey guys sorry. I just learned more about it is a viscous limited slip its been used but I should use the gear oil and then switch to the redline or shouldi slowly change it. So if im going to the track with slicks on what should I do?

[Ramius83]

Well, since you have the viscous rear end, and this is identical to the Skyline rear end, just switch it all over to the redline Shockproof heavyweight. Go to http://www.skylinesaustralia.com and search. Believe me, this topic has been discussed more times than any one can count.....

Since you do NOT have a clutch diff, you don't have to worry about what Carl H is talking about, even though he is right, but not on your application.

[red240sx sr20det]

My viscous is out of a skyline. I am hearing so many different things that I am getting really confused all i know is i want something that is going to make it hook and run super good and make sure it wont damage it. what is the shock proof going to do that the light weight differential fluid or the heavy gear oil wont, and if i get shock proof what grade or weight should I get? so far ive heard just to get some royal purple gear oil I think i was told to get 75w90 but im not sure so?
Modified by red240sx sr20det at 3:41 AM 4/26/2005

[red240sx sr20det]

Thanks for everyone's input, I just picked up some royal purple 75w90 gear oil really appreciate everyones input.