Gearbox oil

Discussion and technical advice the SW20 MR2. 3S-GTE, 3S-GE, 3S-FE etc
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easty-5
Posts: 549
Joined: Mon Sep 14, 2009 10:55 pm
Location: Aberdeen, Scotland

Gearbox oil

Post by easty-5 »

Rev 3 tubby, apparently has an TRD
diff. I'm going to change the oil. I have 5 litres, is this enough?
Last edited by easty-5 on Sun Jul 11, 2010 1:05 am, edited 1 time in total.
Tubby
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Joined: Sun Sep 13, 2009 11:21 pm

Re: Gearbox oil

Post by Tubby »

The gearbox and limited slip diff on the mr2 are 2 separate boxes matey,so will both have to be filled individually :thumleft:
easty-5
Posts: 549
Joined: Mon Sep 14, 2009 10:55 pm
Location: Aberdeen, Scotland

Re: Gearbox oil

Post by easty-5 »

Okay, well I'm just going to be replacing the gearbox oil. Is 5 litres enough?
Tubby
Posts: 245
Joined: Sun Sep 13, 2009 11:21 pm

Re: Gearbox oil

Post by Tubby »

Im sure if memory serves me well???? the turbo gearbox holds 3.8litres so yes mate,as to get the gearbox full,you just pore oil into the gearbox once it starts coming out its full :thumleft: but first thing is make sure the fill plug comes out as you dont want to drain the box to find out you cant replace the oil :oops: and for the fill and drain plugs you will need a 24mm six-point socket :thumleft:
Edit,
http://www.imoc.co.uk/forums/kb.php?mode=article&k=39
Slarty
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Location: Barking, Essex

Re: Gearbox oil

Post by Slarty »

Tubby wrote:The gearbox and limited slip diff on the mr2 are 2 separate boxes matey,so will both have to be filled individually :thumleft:


No they're not.
easty-5
Posts: 549
Joined: Mon Sep 14, 2009 10:55 pm
Location: Aberdeen, Scotland

Re: Gearbox oil

Post by easty-5 »

Slarty wrote:
Tubby wrote:The gearbox and limited slip diff on the mr2 are 2 separate boxes matey,so will both have to be filled individually :thumleft:


No they're not.


I didn't think they were either.
Slarty
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Location: Barking, Essex

Re: Gearbox oil

Post by Slarty »

No, my apologies, from a quick search it seems they are. I could swear I've seen someone (an affiliate if I remember correctly) stating that they're not. I shall carry on searching!

Edit: searches all seem to confirm that the LSD is indeed seperate to the gearbox oil. I'll shut up now :lol:
easty-5
Posts: 549
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Location: Aberdeen, Scotland

Re: Gearbox oil

Post by easty-5 »

So where abouts are the LSD oil fill and drain points?
Tubby
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Re: Gearbox oil

Post by Tubby »

Slarty wrote:
Tubby wrote:The gearbox and limited slip diff on the mr2 are 2 separate boxes matey,so will both have to be filled individually :thumleft:


No they're not.


So if you fill the gearbox up you fill the limited slip diff up as well :lol: :clap: there separate items,to be filled separately.
Tubby
Posts: 245
Joined: Sun Sep 13, 2009 11:21 pm

Re: Gearbox oil

Post by Tubby »

Slarty wrote:No, my apologies, from a quick search it seems they are. I could swear I've seen someone (an affiliate if I remember correctly) stating that they're not. I shall carry on searching!

Edit: searches all seem to confirm that the LSD is indeed seperate to the gearbox oil. I'll shut up now :lol:


Sorry mate just seen this :lol: :thumleft:
jmachling
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Location: Where the cider apples grow.

Re: Gearbox oil

Post by jmachling »

If it's an original viscous LSD then it's sealed.

The TRD is likely to be a plate type so will rely on the gearbox oil to work. They must share the same oil or friction modifier additives wouldn't work.
dai21t
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Location: Llanelli

Re: Gearbox oil

Post by dai21t »

The lsd and gearbox internals definately share the same oil, at least they did when I rebuilt the box on my car.

Can't remember the capacity of the box, but 5 litres is definately enough. Just make sure its suitable for lsd's.
easty-5
Posts: 549
Joined: Mon Sep 14, 2009 10:55 pm
Location: Aberdeen, Scotland

Re: Gearbox oil

Post by easty-5 »

It's Fuch's fully synthetic 75-90 gearbox oil. I'm sure it will be fine.
i got boost
Posts: 119
Joined: Wed Jul 22, 2009 4:05 pm

Re: Gearbox oil

Post by i got boost »

im pretty sure it 3.8 litres i used 4 quarts of mt90 :thumleft: where is the cap for the lsd :?: :lol:
i got boost
Posts: 119
Joined: Wed Jul 22, 2009 4:05 pm

Re: Gearbox oil

Post by i got boost »

easty-5 wrote:Rev 3 tubby, apparently has an TRD
diff. I'm going to change the oil. I have 5 litres, is this enough?
Simple answer yes :D
ej2_sir
Posts: 187
Joined: Mon Apr 16, 2007 6:43 pm
Location: Derby

Re: Gearbox oil

Post by ej2_sir »

I have TRD Diff in mine and had loads of problems with gearbox oil. You need 3.8l and mine did not like 75-90 at all. Wheels started hopping and grabbing constantly at slow speed turns. Swapped it out for comma 80 -90 lsd oil (red bottle bout fiver a litre from most motor factors) and this cured it straight away
Craig_MR2T
Posts: 32
Joined: Wed Apr 22, 2009 8:11 pm
Location: Edinburgh, Scotland

Re: Gearbox oil

Post by Craig_MR2T »

Where is the best place to buy this mt90 gearbox/dif oil? I have a rev 3 turbo with a standard LSD I think
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