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1.5 Way Diff Oil


JCaSs1001
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hi,

i have a 1.5 way diff in my R33 gts-t, nismo from what i have been told and its due for an oil change.

just trying to find out what oil i need, cant find much on nismo website, and dont really know what else to be looking for...

motul have Gear 300 75w-90 listed (1.5L) on their site for the standard diff

redline have a shock proof synthetic 70w-90 (bit confusing http://www.redlineoil.com.au/Uploads/Downloads/SPGO%20TR%2002_03.pdf ) listed which i recall hearing someone use

would either of this suit???? any other recommendations would be great

Edited by JCaSs1001
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Any LSD oil that meets GL-5 specs. The Nismo LSD oil is 75W-140: http://www.rhdjapan.com/nismo-lsd-gear-oil-75w-140-1-liter-62152 . It really depends on how you want the LSD to engage, 75W-90 will probably be the best for purely street driving, the second number (90) is how the LSD will behave when it's reached operating temperature, a higher number like 140 will make the LSD engage more aggressively at slow speed (roundabouts, parking etc).

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nice pics of the lsx90 on google..... lol (the girl)

i found the motul/nismo 75w140, but since im using it mainly on the street mayb i should go the lower viscosity.

LSX90 is as good quality as motul/redline/kaaz???... ive never really liked castrol oils and it looks a little cheap and nasty but i spose if they have the same rating then they have to meet the same requirements....

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If you can tell a quality of an oil just by looking at it, you sir, should look at a career with News Ltd. doing their horoscopes.

I've used Castrol Edge motor oil for 8 years now, LSX90 in the diffs - no issues over 5 motors/3 cars. If the bite of the diff is too harsh, just put some Penrite friction modifier in and that should sort it out.

A friend of mine was actually in oils & oil sales for many years. It's interesting to have a chat about all things brands.

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The shockproof lineup is actually a little confusing since redline lists 2 different numbers for film thickness and fluid friction. Redline shockproof lightweight is an effective 75w140, shockproof heavyweight is an effective 75w250, shockproof superlight is the 75w90 one. People on here have used shockproof lightweight with success in the factory GTR LSD.

I use the regular Redline gear oil (non-shockproof) 75w90 in my factory LSD, personally I wanted a quiet diff, didn't want any locking up around roundabouts or chirping while trying to park. Although I did talk to my mechanic about this in the past and when servicing the Aus delivered GTRs at the dealerships they used a straight SAE 140 in the front and rear diffs.

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  • 2 years later...

I used the lightweight in the evo diff and transfer, it foamed up and spewed crap everywhere, even out the seals. Now running the heavyweight with no issues.

The Stagea seems to like the lightweight in the VLSD.

For a mechanical I would probably run a standard GL5 and change it more often.

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